Direct insertion pesticide supply box of plant protection unmanned aerial vehicle

The utility model relates to the technical field of pesticide supply boxes, and discloses a plant protection unmanned aerial vehicle direct insertion pesticide supply box which comprises a box body, the edge of an inner cavity of the box body is subjected to fillet treatment, a connecting column is arranged at the top end of the inner wall of the box body, and four guide grooves which are circumferentially arranged at equal intervals are formed in the side face of the connecting column. A cavity is formed in the top end of the box body, the cavity is communicated with the four guide grooves, a top ring is fixedly connected to the top end of the box body, and the outer diameter of the top ring is matched with the diameter of the connecting column; the inner diameter of the top ring is matched with the diameter of the cavity. By additionally arranging the guide groove, water flow is sprayed along the top of the box body through the guide groove, meanwhile, the counter-acting force of the water flow enables the