Pesticide spraying device for wheat field

The invention discloses a pesticide spraying device for a wheat field. The pesticide spraying device comprises a first motor and a bottom plate, a working chamber is arranged at the left upper end ofthe bottom plate, a medicine box is arranged at the right upper end of the bottom plate, a second motor is arranged in the middle right below the medicine box, a water pump is arranged at the left lower end inside the medicine box, the upper end of the water pump is connected with a water outgoing pipe, the left end of the water outgoing pipe is connected with a nozzle, a hydraulic cylinder is arranged in the middle of the bottom end inside the working chamber, the upper end of the hydraulic cylinder is connected with a hydraulic rod, a seat is arranged at the upper end of the hydraulic rod, the right end of the seat is connected with a backrest, and a mounting box is arranged towards the left side of the front of the seat. By arranging the hydraulic cylinder, the water pump, the first motor, the seat, the backres