External water-cooling intercooler of automobile engine

The utility model discloses an external water-cooling intercooler of an automobile engine in the technical field of automobile engines, which comprises an intercooler main body and an air circulation layer, and a water-cooling mounting plate is fixedly assembled in the middle of the front side wall of the intercooler main body; auxiliary fixing pieces are evenly and fixedly assembled on the front side wall of the water-cooling mounting plate in the transverse straight direction, an intercooler water inlet pipe is fixedly assembled on the left side of the front side wall of the water-cooling mounting plate, and an intercooler water outlet pipe is fixedly assembled on the right side of the front side wall of the water-cooling mounting plate. Hot air in an engine enters the intercooler air inlet bin from the intercooler air inlet and then enters the air circulation layer, at the moment, the cooling liquid layer and the water circulation layer on the outer side rapidly cool the internal air, then the air enters t