Water cooling device for changing local temperature

The utility model discloses a water cooling device for changing local temperature, and provides a semiconductor refrigeration water cooling and humidifying device which is high in cooling efficiency and low in price and can ensure clean interior air. The device structurally comprises a shell, a control circuit, an electronic refrigeration chip, a power supply, a circulation water tank, a fan and a cold water circulation portion, a hot air cavity air inlet, a hot air cavity air outlet, a cold air cavity air inlet and a cold air cavity air outlet are formed in the shell, the circulation water tank is arranged in the shell, a refrigeration end of the electronic refrigeration chip contacts with the end face of one side of the circulation water tank, a heating end of the electronic refrigeration chip is arranged in a hot air cavity of the shell, the circulation water tank and a water row form a circulation structure of cooling water in the circulation water tank through a water pump, an air inlet end corresponds to the circulation water tank, an air outlet end corresponds to the cold air cavity air outlet through the water row, the air inlet end is arranged on a radiating fin of the electronic refrigeration chip, the air outlet end corresponds to the hot air cavity air outlet, and the control circuit, the power supply and the water pump are electrically connected with a control switch. The water cooling device has the advantages of high cooling efficiency, low price and power consumption and convenience in use.