The utility model relates to the field of brewing equipment, particularly to an air-cooled stubble cooling machine, which includes a bracket, a conveyor belt, a motor and a fan, wherein the conveyor belt is obliquely arranged on the bracket; the motor and the fan are mounted on the bracket; and a yeast feeding device is arranged at the upper end of the conveyor belt. The air-cooled stubble cooling machine replaces the manual working of conventional cooling yeast-feeding fermentation for brewing, thereby reducing the worker demand from multiple to 1 to 2, greatly reducing the labor quantity, greatly reducing the labor intensity of workers at the same time, and greatly improving the production efficiency.