Gas spectrum analyzer

The utility model provides a gas spectrum analyzer, and belongs to the technical field of gas detection. The gas spectrum analyzer comprises a gas spectrum analyzer body, a shell and a storage assembly, the gas spectrum analyzer body is located in the shell, the storage assembly comprises a fixing frame, a lead screw, a lifting frame, a sliding block, a lifting plate and a buffering piece, the fixing frame is provided with a sliding groove and a lifting groove, the other side of the sliding block is slidably connected to the lifting frame, the lifting plate is fixedly connected to the upper side of the lifting frame, and the buffering piece is fixedly connected to the lifting frame. The two sides of the lifting plate are fixedly connected with fixing blocks. According to the gas spectrum analyzer, a screw rod is rotated to drive a fixed block to move, so that a lifting plate can move up and down, the lifting plate is kept to ascend stably under the combined action of a sliding block, a lifting frame and a fix