Cooling system

The invention discloses a cooling system which comprises a water tank, a circulation water pump, a cooling device and a water cooling box; the water cooling box comprises a water cooling box body and a draught fan; the water cooling box body comprises a shell, a coiled tube type heat exchanger, radiating fins, a water inlet pipe and a water outlet pipe; a set of opposite walls of the shell are each provided with a ventilating opening, the draught fan is fixed to one ventilating opening, the coiled tube type heat exchanger is arranged inside the shell and is communicated with the water inlet pipe and the water outlet pipe which are arranged outside the shell, and the radiating fins are arranged on the coiled tube type heat exchanger; and the water tank, the circulation water pump, the cooling device and the water inlet pipe are sequentially communicated, and the water outlet pipe is communicated with the water tank. According to the cooling system, circulated flowing water is used for cooling, the radiating fi