System for discharging liquid effluent of nuclear power plant by wet cooling tower

The invention discloses a system for discharging liquid effluent of a nuclear power plant by a wet cooling tower, which comprises the wet cooling tower and a mechanical draft cooling tower arranged in a tower body of the wet cooling tower, an air outlet of the mechanical draft cooling tower is communicated with an air outlet of the wet cooling tower, and an evaporation pond of the mechanical draft cooling tower is used for containing the liquid effluent of the nuclear power plant. According to the system for discharging the liquid effluent of the nuclear power plant through the wet cooling tower, the wet cooling tower and the mechanical ventilation cooling tower are combined to discharge the liquid effluent of the nuclear power plant, process arrangement can be carried out according to different plant site conditions, and the liquid effluent is evaporated into gas through the mechanical ventilation cooling tower; and finally discharging the air into the atmosphere of 300-1000 m by virtue of the carrier effect