Laser gas analyzer

The utility model discloses a laser gas analyzer which comprises a base, the base is fixedly connected with a laser gas analyzer body, the upper side wall of the base is fixedly connected with two side plates, each side plate is provided with a front guide groove and a rear guide groove, the upper side walls of the two side plates are fixedly connected with a sun shield, and the sun shield is fixedly connected with the laser gas analyzer body. The left side wall of the sun shield is provided with two shaft holes which are formed in a penetrating mode, a front groove and a rear groove are formed in the sun shield, the left side walls of the two grooves are rotationally connected with reels through bearings, one ends of the two reels penetrate through the shaft holes and are fixedly connected with fixing devices, and the two reels are provided with roller shutter doors. Door beams are fixedly connected to the bottom side walls of the two roller shutter doors correspondingly, and the two sides of the two door be