Leftist Moslem leader Kamal Jumblatt was buried today with all the pomp of a feudal lord and his followers began avenging his assassination.

At least 60 persons, mostly Christians, were reported slain here and in the area near Jumblatt's ancestral mountain village of moukhtara, where he was buried.

"Revenge, revenge, revenge, oh Walid" (Jumblatt's son), cried grief-stricken women of the Druze sect, waring the traditional mourning garb of black dress and white headbands, as the 59-year-old leader of the leftist Moslem forces during Lebanon's civil war was lowered into a non's civil war was lowered into a grave next to his father and sister, who were also assassinated.

The killing of Jumblatt yesterday on a winding mountain road near Moukhtara by four men with machine guns and a two-way radio poses the gravest test of its four-month occupation for the Syrian-dominated Arab peace force that brought Lebanon's 19-month civil war to an end last November.

Explosions rocked Beirut last night and there was the sound of gunfire throughout the city. In the Christian sector, much of the shooting was in celebration of the death of Jumblatt, who won the Lenin Peace Prize in 1972 and is considered by many rightists as the one Lebanese - as distinct from the Palestinians - who was responsible for the civil war.

Ten bodies were seen lying by the side of the road near Moukhtara, six with their throats slit. Nearby, the hulks of more than a dozen freshly buned cars littered the side of the road.

Bands of armed men roamed the streets of Beirut today, stopping cars at will as they did during the fighting, but they vanished once Syrian troops came near. Areas near Jumblatt's party headquarters and sections of the city heavily populated by Druze, a secret Moslem sect, were cordoned off by residents.

The Syrians sent an extra 4,000 soldiers into the mountain villages around Moukhtara, 23 miles southeast of here, in an attempt to stop the regenge killings.

No clear picture emerged here today as to which faction was responsible for the assassination of Jumblatt.

He was hated by some Christian forces because of the alliance he forged with the Palestinians. Many right-wing Christians have insisted there would be no peace in Lebanon as long as Jumblatt remained alive and a political power.

The Syrians tried to muzzle Jumblatt because he opposed forcing the Palestinians to give up their heavy weapons.

For a short period Jumblatt becamse a non-person; even though he was a member of Parliament, newspapers, which are under strict censorhship, were forbidden to mention his name or carry any of his pronouncements. Recently, however, there has been some evidence that Syrians were beginning to court him.

There was also speculation among some diplomats here that the assassination could be the work of extremists on either the left and right who would like to get the fighting started again - either for purely Lebanese aims or to sabotage any chance for peace in the Middle East.

Representatives of all sides in Lebanon's civil war - ranging from Camille Chamoun and Pierre Gemayel on the right to Palestinian leaders such as Yasser Arafat - condemned the Killing.

Jumblatt, whose philosophy combined socialism and Indian mysticism, was the only Lebanese leader of any national stature and his death leaves a vacuum in the political spectrum. His son, Walid, 26, succeeds him as leader of th Druze, but he is unlikely to be able to fill his father's shoes as a national political leader.

Walid Jumblatt immediately appealed to his Druze followers not to try to avenge his father's death, but it may have been too late.

In the mostly-Christian village of Barouk, never Moukhtara in the mountainous Choulf region of Lebanon, 20 people were reported killed last night. Sources in the predominatly Christian section of Beirut reported at least 10 bodies were brought to hospitals there.

Jumblatt's funeral, held in the rain at his family's ancestral palace at Moukhtara, combined primitive emotions with hard politics.

Jumnlatt, dressed in a Western-style suit he generally wore, was laid out on a sofa - a whit ebandage wrapped around his head to cover his fatal head wound. His bodyguard and driver, killed with him, were laid on either side of Jumblatt.

"He was the man who taught us everything," cried one man as he kissed Jumblatt's feet.

While men shot automatic rifles in the air, the women beat their chests, wailed ancient plaintive laments and called for revenge. An estimated 25,000 persons attended the funeral.

A general strike was called for today in the mostly Moslem western section of Beirut, but leaders there said it was designed to keep people off the street in case of trouble. Many shops were closed in the area. CAPTION:

Picture 1, Mourners surround the bodies of slain Lebanese leftist leader Kamal Jumblatt and his driver and guard, who were killed in an ambush on Wednesday. AP; Picture 2, Follwer of Jumblatt first traditional pistol in the air as leftist leader's body is carried in funeral procession. AP