Dropping device for unmanned aerial vehicle

The throwing device comprises an unmanned aerial vehicle body, two fixing plates are fixedly connected to the bottom face of the unmanned aerial vehicle body, grooves are formed in the outer surfaces of the two fixing plates, and limiting plates are slidably connected to the interiors of the two grooves; the outer surface of each limiting plate is fixedly connected with a loading box, and the interior of each loading box is fixedly connected with a pesticide barrel. The device is provided with a fixing plate, a groove and a limiting plate, rapid installation and replacement of the throwing device can be achieved, the throwing device is connected with the unmanned aerial vehicle, water injection of the pesticide barrel is achieved through a water inlet pipe and the pesticide barrel, pesticide injection of the pesticide barrel is achieved through a first connecting pipe, a pesticide storage box and the pesticide barrel, and through a rotating motor, a rotating rod and a stirring rod, pesticide injection can be