Multi-chain block synchronous lifting device and using method thereof

The invention discloses a multi-chain block synchronous lifting device and a using method thereof, and the multi-chain block synchronous lifting device is characterized in that a first hook is mounted at the upper end of a shell; a rotating shaft is arranged in the shell, the driving chain wheel is installed in the middle of the rotating shaft, and the hand-pulled chain is installed on the driving chain wheel and drives the driving chain wheel to rotate. A plurality of lifting chains are mounted on the rotating shaft through a plurality of transmission devices, and each transmission device can correspondingly wind the lifting chains; a chain collecting mechanism is mounted at the lower end of each heavy chain, and a heavy lifting hook is mounted at the lower end of each chain collecting mechanism; and a guide device is arranged in the middle of each heavy chain. The safety of the device is higher; a plurality of lifting sling chains are driven to lift by pulling one hand-pulled chain, one-man operation is ach