Flue gas waste heat energy storage comprehensive utilization system

The utility model provides a flue gas waste heat energy storage comprehensive utilization system, and relates to the technical field of boiler equipment. The system comprises a boiler, a spraying heat exchange tower, a heat pump unit, an electric hot water boiler, an energy storage device and a flow mixing device, boiler flue gas is introduced into the spraying heat exchange tower, the heat pump unit absorbs waste heat of the boiler flue gas and provides low-temperature spraying water for the spraying heat exchange tower, and the heat pump unit is connected with the electric hot water boiler through a pipeline. Circulating water is heated by the electric water boiler and then conveyed to the energy storage device. The energy storage device and the heat pump unit are connected with the flow mixing device. An intermediate water pump is arranged between the spraying heat exchange tower and the heat pump unit, electric adjusting valves are arranged on pipelines on the upstream of the flow mixing device, and the d