The utility model relates to the technical field of
coating machines, and discloses a
fertilizer coating spraying device which comprises a bottom plate, two fixing plates are installed on the top of the bottom plate, one side of each fixing plate is fixedly connected with a blocking plate, one side of each blocking plate is rotationally connected with a
coating machine, a beating
assembly is installed on the top of the coating
machine, and a driving
assembly is installed on the front face of the coating
machine. Through the arrangement of the beating
assembly,
fertilizer particles are poured into the coating machine through the feeding
pipe, then the motor is started, the coating machine rotates under the action of the driving gear and the gear ring, a coating agent is introduced into the pipeline through the liquid inlet
pipe at the moment, in the process, the connecting gear drives the beating gear to deflect in a reciprocating mode, and the coating agent is discharged into the pipeline through the liquid outlet
pipe. And a striking rod drives a knocking rod to continuously knock the surface of the coating machine through a connecting ring, so that a
fertilizer adhered to the inner wall of the coating machine is knocked off, a coating agent and fertilizer particles are mixed more uniformly, and the discharging effect of the device is improved.