Gas measuring pipe

A gas measuring pipe comprises an adjustable base, gradienters with two directions, a vertical panel, a rubber pipe, a scale pipe, a fastening clamp, an adjustable scale line plate and a gas storing pipe. The gas measuring pipe is characterized in that the vertical panel is vertically fixed in the center of the adjustable base, and the gas storing pipe is connected with the scale pipe through the rubber pipe and fastened and clamped on the vertical panel; the adjustable scale line plate is connected to the vertical panel through a fastening screw, the adjustable base is a cuboid and is connected with height-adjustable footings, the adjustable scale line plate is of a rectangle sleeve type structure, and the vertical panel, the scale pipe and the gas storing pipe are sleeved with the adjustable scale line plate, the adjustable scale line plate is fastened on the vertical panel through the fastening screw, the front face of the adjustable scale line plate is transparent, and a thin scale line is arranged on the horizontal axis of the front face; the gradienters with two directions are vertical to each other and are horizontally fixed on the surface of the adjustable base, and the length of the scale pipe is same as the length of the gas storing pipe; through adjusting the liquid level and the adjustable scale line plate, the size of the gas to-be-measured can be read accurately.