Heat supply network drain waste heat utilization system for supercritical unit of thermal power plant

The utility model discloses a thermal power plant supercritical unit heat supply network drainage waste heat utilization system which comprises a base, a spraying box is fixedly installed on the left side of the top of the base, a water storage box is fixedly installed on the top of the spraying box, and a dust removal box is fixedly installed at the middle end of the top of the base. Water in the inner cavity of the water storage tank is sucked by the input end of the water pump through the water pumping pipe, then the water is sprayed out by the output end of the water pump through the water conveying pipe and the spray head, smoke in the inner cavity of the spraying box is subjected to spraying and dust falling, suction force is generated by the input end of the fan through the horn pipe, and the smoke enters the inner cavity of the dust removing box through the connecting pipe. Dust in the flue gas can be further adsorbed through a filter screen, finally, the output end of a fan conveys the flue gas into