Cooling device for computer case

The utility model discloses a cooling device for a computer case and relates to the technical field of computers. A top plate is arranged on a case body, a bottom plate is arranged under the case body, corresponding sliding grooves are formed in the top plate and the bottom plate, a sliding plate is connected with the first sliding grooves slidably and arranged in the case body, electronic elements are arranged on the sliding plate, a rear surface plate is arranged on one side of the case body, the bottom end of the rear surface plate is in hinge connection with the bottom plate, and a second sliding groove corresponding to the first sliding groove in the bottom plate is formed in the rear surface plate. By forming the first sliding grooves in the top plate and the bottom plate of the case body and arranging the electronic elements on the sliding plate matched with the first sliding grooves, the rear surface plate is pulled open directly to enable the sliding plate to slide out of the case body through the fi