Plastic particle granulator

The invention relates to the field of plastic processing, in particular to a plastic particle granulator. The plastic particle granulator comprises a separation box, a slag discharging opening is formed in the separation box, a separation wheel is rotationally connected into the separation box, four filter plates are arranged on the separation wheel, scraping plates are arranged in the separation box, each scraping plate is in threaded connection with a double-thread rod, and one ends of the two double-thread rods are connected through a belt. A first stepping wheel is fixedly connected to the separating wheel, and four first sliding grooves are evenly distributed in the first stepping wheel. The other end of one double-thread rod is fixedly connected with a second stepping wheel, and four second sliding grooves are evenly distributed in the second stepping wheel. A rotating shaft is rotationally connected to the separating box and fixedly connected with a connecting rod, and the other end of the connecting r