Feed filtering device with multi-stage filtering function

The utility model relates to the technical field of feed processing, and discloses a multi-stage filtering feed filtering device which comprises a support, a box body is fixedly installed on the support, a vibrating screen assembly is arranged in the box body, the vibrating screen assembly comprises a transmission part arranged in the box body, a vibrating part is arranged on the transmission part, and the vibrating part is arranged on the transmission part. A transmission part is arranged in the box body, a collection part is arranged in the box body, a mounting part is arranged in the box body, the transmission part comprises a box top cover which is arranged at the top of the box body, and a transmission motor drives an internal transmission rod to rotate, so that a screen drum on the outer wall of the transmission rod is driven to rotate to throw and screen fertilizer in a screen mesh, and the fertilizer in the screen drum is screened onto the screen mesh; the bottom of the transmission rod is sleeved wit