The hired man then placed an unconscious Lin into a coffin and sealed it with four steel nails.
The coffin was then swapped with the wealthy man's when it was due to be sent for cremation.
Lin was cremated while Huang's body was taken to a secluded area for a traditional family burial.
Relatives paid 107,000 yuan ($22,900) for the evil scheme, of which 90,000 yuan ($19,290) went to Huang while the rest went to a middleman identified by the surname Wen.
Lin was listed as a missing person for two years before his family discovered he had been murdered in November 2019, after police used surveillance footage to solve the crime, Sohu News reported.
Huang was given a suspended death sentence by a court, and the case has only gained prominence this week as Chinese media reports emerged.