Pesticide sprayer device for corn planting

The utility model discloses a corn planting pesticide sprayer device which comprises a bottom plate, a handrail, a pesticide barrel, moving wheels, a pesticide pump, a pesticide conveying pipe, a lead screw groove, a lead screw, a power mechanism, a main shaft base, a sliding base, a fixing block and a spray head. The handrail is fixedly arranged at the rear end of the bottom plate, the moving wheels are arranged at the four corners of the bottom face, and the pesticide barrel is fixed to the rear portion of the top face. A pesticide pump fixed to the bottom plate is arranged on the front side of the pesticide barrel, a spindle base is fixed to the upper side face of the front end of the bottom plate, a spindle is rotationally connected to the top end of the spindle base, the upper portion of the spindle is connected with a power mechanism, a lead screw groove is rotationally connected with the spindle, and one end, located in the lead screw groove, of the spindle is fixedly connected with a lead screw; the l