Evaporative cooler and graphitization furnace cooling water circulation system

The utility model provides an evaporative cooler and a graphitization furnace cooling water circulation system, the evaporative cooler comprises a shell, the shell is provided with a heat exchange tube, a spraying mechanism and an air inlet mechanism, the spraying mechanism and the air inlet mechanism correspond to the heat exchange tube, and the bottom of the shell is provided with a water collecting tank; the spraying mechanism comprises a spraying pipe section with a spraying head and a circulating water pipe section connected with the spraying pipe section, and the circulating water pipe section extends into the water collecting tank and is provided with a water suction pump; the water collecting tank is connected with a spraying supplementing water pipe; the spraying water supplementing pipe is further connected with a spraying branch pipe, and a pneumatic switching valve is arranged on the spraying branch pipe. The heat dissipation efficiency is effectively improved, and spray cooling in an accident sta