Hot air drying device for zero discharge of salt-containing wastewater of thermal power plant

The utility model relates to a hot air drying device for zero discharge of salt-containing wastewater of a thermal power plant. The hot air drying device comprises a drying device, a wastewater supply device and an accident emptying device which are connected and matched with one another, the drying device comprises a hot air spouted bed dryer, the hot air spouted bed dryer is connected with a hot air pipe of the boiler through an air inlet pipe, and the hot air spouted bed dryer is connected with a dust remover through an air outlet pipe; the wastewater supply device comprises a buffer tank, the buffer tank is connected with the hot air spouted bed dryer through a wastewater pipe, and the buffer tank is connected with the liquid storage tank through a liquid inlet pipe. The device has the advantages that the three devices are operated in a matched manner, hot primary air or hot secondary air of a boiler is used as a heat source, salt-containing wastewater or a concentrated solution of the salt-containing was