Cooling water drainage device

The utility model relates to the technical field of heat exchange equipment, in particular to a cooling water drainage device which comprises an intercooler fixedly installed between a tank cover and a drainage tank through an upper installation tank and a lower installation tank. A drainage hole in the lower end of the drainage groove is fixedly connected with a water inlet in the water storage tank through a drainage pipe, a first mounting plate at the front end of the intercooler is fixedly connected with an air inlet head through a first mounting frame, a second mounting plate at the rear end of the intercooler is fixedly connected with an air outlet head through a second mounting frame, and a flow guide plate is arranged in the drainage groove. According to the utility model, the guide plate is arranged at the bottom of the heat exchange part of the intercooler, so that condensed water can flow to the confluence groove through the guide groove and is discharged into the water storage tank through the wat