Spiral rollers are mainly used to clean up debris adhering to the belt and can also play a certain role in adjusting the deviation. The structure is that a spiral round steel with a diameter of 10 to 14 mm is welded on the ordinary roller or a spiral groove cast rubber sleeve is added to the outer surface to increase the wear resistance of the entire roller, which can thoroughly clean up the adhesion on the belt and effectively ensure the service life of the belt conveyor belt.