Fertilizer dehydration device

A fertilizer dewatering device comprises a shell, an opening of the shell faces upwards, a horizontal fixing cylinder is fixedly installed in the shell, four sections of direction-dividing screws are rotatably installed in the fixing cylinder, and the upper end of the fixing cylinder is provided with a feeding port at each section of the four sections of direction-dividing screws. The four-section directional screw rod comprises a first screw rod, a second screw rod, a third screw rod and a fourth screw rod, the fixing cylinder is provided with fixing sleeves on the first screw rod, the second screw rod, the third screw rod and the fourth screw rod, a plurality of extrusion blocks extending into the inner sides of the fixing sleeves are arranged in the fixing sleeves, the feeding direction of the first screw rod is opposite to that of the second screw rod, and the feeding direction of the second screw rod is opposite to that of the second screw rod. The feeding directions of the first screw rod and the third