The utility model provides a device for preventing pvc granule blocks up transport pipe way, including steam generator, steam generator is the equipment for producing high -temperature steam promptly,at steam generator's overboard steam drain mouth fixedly connected with delivery duct way, delivery duct says that the first loose joint of the terminal turn the corner of expert is connected with the steam -jet ejector pipeline, steam -jet ejector pipeline diameter is less than the delivery duct way, the terminal fixed elbow that is equipped with of steam -jet ejector pipeline, the elbow is 90 degrees elbows, the outside cover of steam -jet ejector pipeline is equipped with and is equipped with mechanical seal between tee bend steam -jet ejector pipeline and the tee bend. The utility model discloses under utilizing the high humility, should not produce static during the friction of pvc granule, can't cause and gather conglobate principle, carry the pipeline to material transport with high -temperature steam. Simultaneously, according to transportation load, carry out forward or reverse impact with the air of high humility through the material of certain pressure in to the pipeline tofurther play preventing the conglobate condition of material gathering, realized the function that prevents the jam of transport pipe way.