Abstract: Abstract：The northern Shaanxi region is a typical area of poor water resources rich coal, the Halagou Colliery of Shenhua Shendong Coal Group located in the north of Shanaxi is serious shortage of water resources. Halagou Colliery after many years efforts, the goaf coal gangue as a carrier of the filter and purification sewage，and then after the secondary processing for the use of underground and ground production. through measures such as water quality protection, clear water and sewage separation, without pollution water, like Goaf water, drain water, Roof water, will be focused and smoke into the ground for the use of ground life, realize the circulation utilization of mine water.

Key words: Keywords: mine water resources, the comprehensive utilization, Sewage treatment, the water quality security, the mining area water supply