Pesticide spraying lifting device

The utility model discloses a pesticide spraying lifting device which comprises a bottom plate, a connecting rod, an electric push rod, a horizontal auxiliary plate, a top plate, a pin shaft and a pesticide spraying assembly. The connecting rods form a parallelogram through the pin shafts, the bottom plate and the top plate in a four-connecting-rod mode to form a scissor-fork type lifting mechanism. One end of the electric push rod is installed on the horizontal groove of the bottom plate to slide, the other end of the electric push rod is installed on the connecting rod through a pin shaft, and the electric push rod changes the shape of the parallelogram to achieve movement in the vertical direction. The two ends of the horizontal auxiliary plate are installed on the two pin shafts, at the same height, of the parallelogram. The pesticide spraying assembly comprises a steering engine fixing plate, a steering engine, a swing arm, a spray head and an electromagnetic valve; the steering engine fixing plate is fi