High-tower thermal screening device for compound fertilizer

The utility model discloses a compound fertilizer high tower thermal screening device which comprises a screening tank, a screening assembly is arranged in the screening tank and comprises a hollow column fixedly connected to the interior of the screening tank, a connecting ring is rotationally connected to the interior of the hollow column, a first abutting rod is fixedly connected to the outer end of the connecting ring, and a second abutting rod is fixedly connected to the outer end of the first abutting rod. The utility model relates to the technical field of compound fertilizer production devices. According to the high-tower thermal screening device for the compound fertilizer, the rotating connecting ring drives the screening hopper connected with the first abutting rod at the outer end of the connecting ring to rotate, so that the small-particle compound fertilizer is discharged from leaking holes of the screening hopper, the large-particle compound fertilizer is still reserved in the screening hopper,