Watering truck spray boom system with pesticide spraying, dust falling and disinfection functions

The utility model discloses a sprinkler spray boom system with spraying, dust-falling and disinfecting functions, which is characterized in that spray boom components are arranged in four directions of a sprinkler, namely, the spray boom components are arranged at the front end, the rear end and two sides of the sprinkler, all spray booms are communicated with a water tank of the sprinkler through corresponding connecting pipes, electromagnetic water valves are arranged on the connecting pipes, and the electromagnetic water valves are communicated with the sprinkler. The electromagnetic water valve is connected with a controller, four control buttons for opening the spraying rods in the four directions respectively are arranged on the controller, through selection of the control buttons, multiple spraying modes such as surrounding spraying, front spraying, rear spraying, single-side spraying and two-side spraying of the watering cart can be achieved, and multiple work requirements such as pesticide spraying,