Fertilizer particle screening device

The utility model relates to a fertilizer particle screening device which comprises a frame, a feeding mechanism is arranged on the right side of the frame, a screening plate is arranged on the upper middle portion of the inner side of the frame, a vibration motor is fixedly connected to the middle of the right end of the bottom side of the screening plate, sliding grooves are formed in the front side and the rear side of the upper end and the lower end of the screening plate, and racks are arranged in the sliding grooves. Fixing plates are arranged on the front side and the rear side of the sieve plate, a third rotating shaft and a fourth rotating shaft are rotationally connected between the middle portion and the lower portion of each fixing plate, and the third rotating shafts and the fourth rotating shafts are located at the upper end of the sieve plate. According to the utility model, the fertilizer is manually poured into the feeding hopper, the spiral blade in the feeding mechanism conveys the fertiliz