Radiating lampshade

The utility model discloses a heat dissipation lampshade which comprises a shell and a decorative cover, the shell is provided with an inner cavity for containing a lamp, a plurality of ribs extendingfrom the top of the shell to the bottom of the shell are arranged on the outer surface of the shell, all the ribs are distributed on the outer surface of the shell at intervals, and a heat dissipation channel is formed between every two adjacent ribs. The decorative cover comprises a top cover and a cover wall bent towards the shell, an air inlet grille is arranged on the top cover, the decorative cover is installed at the top of the shell so that part of the shell can be covered with the cover wall, a guide air duct is defined between the cover wall and the heat dissipation channel in the upper portion of the shell, and cold air can be guided to the heat dissipation channel in the lower portion of the shell through the guide air duct. In the using process, external cold air enters the interior of the decorative