Kiln cooling device and kiln

The utility model provides a kiln cooling device and a kiln. The kiln cooling device comprises a cooling chamber, a conveying device and a plurality of cooling pipes. The conveying device is arranged in the cooling chamber and used for conveying to-be-cooled materials in the first direction. The multiple cooling pipes are arranged in the cooling chamber and located on at least one side of the conveying device. Wherein heat-conducting fins are arranged on the outer surface of the cooling pipe. By arranging the heat-conducting fins on the outer surfaces of the cooling pipes, heat in air in the cooling chamber can be absorbed more quickly by utilizing the heat-conducting capacity of the heat-conducting fins, so that the heat exchange area of the cooling pipes is increased, the heat exchange efficiency in the cooling chamber can be improved, and cooling of materials to be cooled is accelerated; the to-be-cooled material in the cooling chamber can be quickly cooled to the process temperature which does not react w