Compound fertilizer production equipment with particle vibrating screen and use method thereof

The invention discloses compound fertilizer production equipment with a particle vibrating screen and a use method thereof. The equipment comprises supports, an outer shell, an inner shell and a vibrating screen outer shell, wherein the lower end of the outer shell is fixedly connected with the four supports used for supporting, the periphery of the inner wall of the outer shell is fixedly connected with the inner shell, a cavity is formed between the lower end of the inner shell and the inner wall of the outer shell, and the vibrating screen outer shell is arranged in the inner shell; the vibrating screen outer shell is sequentially provided with a large particle cavity, a small particle cavity and a powder cavity from top to bottom, a plurality of heat blowing machines with downward air ports are arranged at the rear ends of the large particle cavity and the small particle cavity and located in the vibrating screen outer shell, and a large particle screen inclining backwards is fixedly connected between the