Multi-stage bean sorting machine

The invention discloses a multi-stage bean sorting machine. The multi-stage bean sorting machine comprises a rack assembly, a conveying device and a guiding mechanism. The rack assembly comprises a frame body, a feed hopper and discharge hoppers, wherein the feed hopper and the discharge hoppers are arranged on the frame body. The conveying device is obliquely arranged on the frame body and located between the feed hopper and the discharge hoppers, the feed hopper is located above the conveying device, the discharge hoppers are located below the conveying device, the conveying device is used for driving sorted objects falling from the feed hopper to move upwards, and the conveying device is in transmission connection with a drive device. The guiding mechanism is arranged on the frame body,located above the conveying device and used for guiding the sorted objects to move on the conveying device along a preset path. The discharge hoppers and the movement tracks of the sorted objects arecorrespondingly arranged,