The invention relates to the technical field of pelletizers, and discloses a PPS plastic pelletizer which comprises an
extrusion cylinder, a mold, a melting cylinder, a feeding port, a discharging port, two electric valves, a heater, an extraction and purification device, a stirring device, a scraping device, a controller and the like, the mold communicates with the
extrusion cylinder, the bottom of the melting cylinder is fixedly connected with the top of the
extrusion cylinder and communicates with the extrusion cylinder, and the bottom of the melting cylinder communicates with the discharging port. The extraction and purification device is connected with the melting
barrel, the stirring device is connected with the melting
barrel and the extraction and purification device, and the scraping device is connected with the melting
barrel and the stirring device. And the situation that
waste gas in the melting cylinder is continuously accumulated, the pressure in the melting cylinder is increased, and the plastic melting quality is affected is prevented, the exhausted
waste gas is exhausted after being purified through the purification box, and the
waste gas is prevented from affecting the environment and workers.