The utility model provides a gas filtering and
drying device. The gas filtering and
drying device comprises a base, wherein an adjusting device and two convenient replacement devices are arranged on the base; the adjusting device comprises a fixing
pipe, a
threaded rod, a bearing, an upper cover and a rotating
handle, the fixing
pipe is fixedly installed on the top face of the base, the
threaded rod is in threaded connection to the fixing
pipe, the inner wall of the bearing is fixedly connected to the
threaded rod, the upper cover is fixedly connected to the outer wall of the bearing, and the rotating
handle is fixedly connected to the top end of the threaded rod; and the convenient replacement device comprises a semi-
drying pipe, a fixing ring, four spring telescopic rods, a closing plate, a top pipe, a vent hole, a sealing rubber pad and a sealing pad, the semi-drying pipe is arranged below the upper cover, and the fixing ring is fixedly connected to the inner wall of the semi-drying pipe. The gas filtering and drying device has the advantages that the semi-drying pipes of different sizes and different types can be replaced, and the application range is widened.