The men were believed to be searching for jade in Kachin state when a wall of unstable earth collapsed late Thursday night.
Five bodies were found buried beneath the rubble on Thursday and three more were found yesterday, said Kyaw Swar Aung, the administrator of Hpakant - the heart of Myanmar's jade-producing region.
Rescuers also found two injured men, but one was pronounced dead at the hospital, he added.
"The total number of dead bodies found was nine. Their funerals are today," he told AFP.
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But the secretive trade is poorly regulated and enormously dangerous.
The area around Hpakant has suffered a string of deadly landslides in recent years, with a major incident in November 2015 leaving more than 100 dead.
Numerous other smaller accidents have left scores more dead or injured.
The victims are usually impoverished locals or itinerant workers scouring the area for pieces of of jade left behind by the industrial diggers that have turned the region into a moonscape of environmental destruction.