Abstract: Mine hoist is large mechanical equipment of transporting the underground material or personnel and is very important for the safety and reliability，especially oil pollution damage to the equipment in the thin oil terminal lubricating system and hydraulic system cannot be ignored，which often leads to safety factor reduced，and even results in equipment or personal casualty accident.The traditional type of pollutants control scheme filter and the oil purification scheme based on the mechanism of centrifugal machine are compared and analyzed，proposing that the centrifugal oil purifier can realize oil purification for the lubrication system and each hydraulic system.The practical application in Shirengou Iron Mine of Hebei Iron and Steel Group Mining Co.，Ltd approved that this scheme is reasonable，high efficient and high-level.

Key words: Mine hoist, Lubrication and hydraulic pressure, Centrifugal, Oil purification