Waste heat utilization system for cooling water jacket of calcining furnace

The utility model discloses a waste heat utilization system for a cooling water jacket of a calcining furnace, which structurally comprises a water jacket inlet water, a water jacket return water, municipal inlet water, a plate heat exchanger, a steam absorption heat pump, a steam-water heat exchanger and a condensation water tank, one path of municipal effluent subjected to heat exchange through the plate heat exchanger is connected with a municipal heat supply network, and the other path is connected with the steam absorption heat pump; the water outlet end of the steam absorption type heat pump is provided with three paths, the first path is connected with water jacket return water, the second path is connected with the steam-water heat exchanger and a municipal water outlet pipe through a tee joint, the third path is a condensate water pipeline connected with a condensate water tank, and an outlet of the steam-water heat exchanger is connected with a municipal network water supply pipe. According to the s