Abstract: Considering the ability and treatment effect of the craft “coagulation precipitation and filter” which is traditional, the paper firstly took the Zhangjiamao coal mine water as an example, and analyzed the characteristics of the mine waste water and the reuse destination after treating. Then based on “coagulation precipitation and filter” and integrated equipment technology, it designed a new craft that the swirl coagulation clarifier process is high efficient and integrated. And analyzed the treatment effect and operating costs. The result shows that the major pollutants of mine water in Zhangjiatmao Coal Mine are SS and COD; the quality of the effluent water treated by the craft can reach the relevant standards, so it can be used for the yellow mud grouting, underground fire sprinkler and daily life water in coal mine; the treatment cost of per ton of mine water, this craft than the "swirling coagulation clarification + mechanical filter + disinfection" saves 0.22 yuan.