Feed screening machine

The utility model belongs to the technical field of feed processing, and particularly relates to a feed screening machine which comprises a screening box and a vibrating screen, the screening box comprises a box body, an inserting groove, supporting strips and a discharging port, the inserting groove is formed in the front side of the box body, the supporting strips are arranged at the bottoms of the two ends of the inserting groove, and the discharging port corresponding to the inserting groove is formed in the right side wall of the box body; the vibrating screen is arranged in the inserting groove and comprises an inserting frame, an elastic piece, a screen mesh, a vibrating component and a handle, the screen mesh is connected into the inserting frame through the elastic piece, the vibrating component is arranged on the outer side of the screen mesh, the handle is arranged at the outer end of the inserting frame, the vibrating component drives the screen mesh to vibrate, feed is screened, and the feed is p