Drilling fluid mud is a circulating flushing medium used in drilling, piling, shield and other projects to remove drilling chips (rock chips) mixed in drilling fluid mud. The mud purification system designed and manufactured by GREEN is a new product based on a combination of domestic and international solids control systems and the actual needs of today's domestic and international drilling projects. It can remove harmful solid phase, maintain the performance of drilling fluid, and meet the requirements of drilling fluid circulation, weighting, shearing and accident handling under special circumstances, which can effectively improve the efficiency and safety of drilling operations. It is convenient for road and railroad transportation and can be moved within a short distance in the well site.