Compressed natural gas (CNG) cylinder drying device

The utility model relates to a drying device, in particular to a device for drying a compressed natural gas (CNG) cylinder. The CNG cylinder drying device comprises a support. The support is provided with guide wheels; the guide wheels are arranged into a four-row structure; a guide rail is arranged between each two rows of structures; the guide rails are connected with a first air cylinder through a support plate, and the lift height is adjusted through the first air cylinder; second air cylinders are arranged above the guide rails; the lower end of the core of each second air cylinder is provided with a fixed plate. The drying device also comprises a dying box. The drying box is provided with an air outlet; the air outlet is connected with drying pipes through air pipes; air outlet holes are formed in each drying pipe. The CNG cylinder drying device provided by the utility model is simple in structure; the forward and backward movement of a gas cylinder can be conveniently controlled through the guide wheel