Waste heat supply circulating water system

The utility model discloses a waste heat supply circulating water system, which comprises a condenser 1, a circulating water drainage ditch 2, an absorbing well 3, a heat pump 7 and a circulating water supply pipe 9, wherein the water outlet end of the condenser 1 is connected with the circulating water drainage ditch 2, the circulating water drainage ditch 2 is connected with the absorbing well 3, the absorbing well 3 is simultaneously connected with a circulating water pump A 4 and a circulating water pump B 5, the circulating water pump A 4 and the circulating water pump B 5 are connected with a heat pump water supply pipe 6, the heat pump water supply pipe 6 is connected with the heat pump 7, the heat pump 7 is connected with a heat pump drainage pipe 8, the heat pump drainage pipe 8 is connected with a circulating water tank 17, the circulating water tank 17 is connected with the water inlet end of the condenser 1 through the circulating water supply pipe 9, and the circulating water tank 17 is connected with an outdoor drainage pipe network 11 through a circulating water drainage pipe 10. According to the utility model, the low-quality heat extracted from the circulating water is recycled so as to save energy for nation, meanwhile, environmental pollution is reduced, a large amount of river water used for cooling can be saved at every year, the waste heat supply circulating water system has good economic benefit, and the circulating water drainage pipe is switched into the external conventional drainage pipe network so as to be convenient for treatment of drainage water and the future operation and maintenance.