Fertilizer raw material screening equipment

The invention discloses fertilizer raw material screening equipment, and relates to the technical field of fertilizer processing, the fertilizer raw material screening equipment comprises a collecting box, an opening, a fixing plate, a moving rod, a screening box, screening holes, a magnet, an L-shaped rod, an electromagnet and a spring, the screening box communicates with a feeding pipe, and a driving mechanism used for driving the screening box to move downwards is mounted on the moving rod; the screening holes are divided into two groups, two groups of dredging devices are mounted on the collecting box, and the two groups of dredging devices are respectively used for dredging the two groups of screening holes; each group of dredging devices comprises a first electric push rod mounted on the outer side wall of one side of the collecting box, a moving plate mounted at the output end of the first electric push rod and a group of dredging rods mounted at the top of the moving plate; and one group of dredging r