Abstract: Bases on the analysis of the original heating,refrigerating,mine draining,bath draining and air exhausting system,and combines with the actual conditions of Tangkou Coalmine in Shandong Province.Presents a set of comprehensive and integrated utilization scheme for all the different kinds of low quality heat energy.With heat pumps,realizes the recycle of the low quality heat energy from the drainage,bathing water and the exhausting air in winter; and the condensing heat of the refrigerating system in summer.With solar collectors,realizes the thermal utilization of the solar for whole year.Achieves the mine drainage and bathing water purification and reusing,and the exhaust air purification by water spraying.Satisfies the demands of the coalmine for bathing heat whole year,refrigerating in summer,heating for the ground house and shaft house in winter; achieves the integrated utilization of different kinds of low quality heat energy and low emission of the drainage and dust,and can replace the traditional boiler heating system.Reduces conventional energy consumption and the amount of mine water drainage.