The invention relates to a powder coating processing device, relates to the field of powder coating processing and provides the powder coating processing device which is simple in structure, and facilitates processing and collection of crushed materials. The processing device comprises a rack, wherein an extruding mechanism and a crushing mechanism are arranged at two ends of the rack respectively, the extruding mechanism comprises a pair of vertical plates arranged on the rack in parallel, a pair of extrusion rollers is arranged between the pair of vertical plates, and a fan is arranged on the side, facing the crushing mechanism, of each vertical plate; the crushing mechanism comprises a crushing bin, the crushing bin comprises a bin body and a guide cylinder, the bin body is arranged onthe rack, and a crushing roller driven by a driving mechanism is arranged in the bin body; a baffle arranged obliquely is arranged on the side, facing the extrusion rollers, of the bin body; a conveying belt is arranged in the rack and located below the extrusion rollers and the crushing roller; a pair of blowers isarranged on the rack and located between the extruding mechanism and the crushing mechanism.