Fecha de publicación: 09/04/2021 Fuente: WIPO "circular economy" The utility model relates to the technical field of crushing equipment, in particular to a crushing device for recycling PET (polyethylene terephthalate) bottles, which is characterized in that the PET bottles are placed in a compaction box and are compressed by pushing a first pressing plate through a first air cylinder; then a motor drives a sliding block to move to push the compacted PET bottle into a cutting box, the PET bottle is cut into small blocks through a cutter and then enters a crushing box to be crushed, uniform crushing is ensured through a screen, the whole operation is simple, crushing is performed after cutting, the crushing quality is effectively improved, the crushing period is shortened, and the crushing efficiency is improved; the pulverizer comprises a pulverizing box, a supporting column, a feeding port, a discharging pipe, a power box, a rotating shaft and pulverizing cutters. The device further comprises a screen, a compaction box, a feeding pipe, an upper fixing block, a lower fixing block, a first air cylinder, a first telescopic rod, a first pressing plate, a communicating pipe, a motor, a second lead screw, a sliding block, a cutting box, a second air cylinder, a second telescopic rod, a tool apron and a cutting tool.