The invention relates to granule screening equipment. The granule screening equipment comprises a frame, a grading machine, a feeding device, a protecting device, a guiding device and a collecting device, wherein the grading machine comprises a housing, two block objects and six graded adjustment cutting edges; the feeding device comprises a vibrating device, a feeding pipe and a feeding funnel; the protecting device comprises a frame body and a porous ceramic film which is arranged in the frame body; the guiding device comprises a coarse powder guide tube, a fine powder guide tube, a middle powder guide tube, an ultra-fine powder guide tube, a submicron powder guide tube and a micropowder guide tube; the collecting device comprises an air compressor, a main gas flow pipeline, six branch gas flow pipelines, six speed governing valves and six dust collectors. The granule screening equipment solves the problem that an impurity-containing ultra-fine powder jet flow is hard to purify and grade and the grading granularity is hard to control, and has the technical effects that a raw material is few in residue in a feeding barrel, the jet flow is relatively high in grading efficiency, dust granules are unlikely to drift away to air and the like.