Windproof roller shutter

The utility model provides a windproof roller shutter which comprises a cover shell, a roller shutter assembly installed in the cover shell and two sets of side rail assemblies installed on the left side and the right side of the lower portion of the cover shell. A roller shutter is arranged in the roller shutter assembly; the left and right ends of the roller shutter are provided with zippers for connecting with the side rail assemblies; the side rail assembly comprises front and rear side frames, a guide rail, a plurality of elastic pieces and a lower end cover. The front side frame is fixed on the front side of the rear side frame; a guide rail mounting groove is formed between the rear side frame and the front side frame; the guide rail is arranged in the guide rail mounting groove; guide grooves matched with the zippers are formed in the middles of the guide rails; elastic sheet mounting parts are respectively arranged on the front and rear sides of the guide rail; strip-shaped positioning grooves are fo