Swing spraying device of pesticide spreading machine

The utility model relates to the technical field of pesticide spreading machines, in particular to a swinging spraying device of a pesticide spreading machine, which comprises a mounting plate and a pump body, a bottom mounting base is arranged on the upper end face of the mounting plate, the motor end of the pump body is mounted in a limited manner through the bottom mounting base, and the output end of the pump body is connected with a nozzle through a pipeline. The bottom mounting base is in butt joint with a mounting assembly in a matched mode, a wiper motor is mounted in the mounting assembly in a limiting mode, the output end of the wiper motor is connected with a connecting support assembly, the upper end of the connecting support assembly is connected with a spray head, and the wiper motor outputs to drive the connecting support assembly and the spray head to rotate. The windscreen wiper motor is arranged to drive the connecting support assembly to rotate, then the spray head is driven to rotate, swin