The utility model provides a self -cleaning formula refining device, includes first conveyer, refiner, blast apparatus and second conveyer, the refiner top is located to first conveyer for carry the material to the refiner on, blast apparatus locates refiner one side, and the refiner is aimed at to blast apparatus's air outlet, and the below of refiner is located to the second conveyer, is used for carrying the material burning in the stove. The utility model provides a self -cleaning formula refining device establishes blast apparatus through the one side at the refiner to make blast apparatus's air outlet aim at the refiner, thereby can prevent that the material from twining on the refiner, ensure the refining function of refiner. In addition, utilize blast apparatus to prevent that the material winding is on the refiner to material after making the refiner with the refining is carried when burning to the stove in, can ensure that boiler load can normal function, avoids having improved the combustion efficiency of material because the material supply inhomogenous and cause boiler operation's unstable influence, has practiced thrift the upkeep cost to the refiner.