Fuel gas pressure regulating box

The invention relates to the field of pressure regulating boxes, in particular to a fuel gas pressure regulating box. The fuel gas pressure regulating box comprises a box body. An inlet manifold is arranged in the box body, the upper portion of the inlet manifold is connected with an inlet ball valve, the upper portion of the inlet ball valve is connected with a filter, an outlet of the filter is connected with a fuel gas pressure regulator through a pipe, an outlet of the gas pressure regulator is connected with an outlet ball valve through a pipe, the other end of the outlet ball valve is connected with an outlet manifold, one side of the outlet manifold is provided with a pressure measuring pipe, the pressure measuring pipe is connected with a needle valve, the needle valve is connected with a pressure gauge through a pipe, and a buffer pipe with the buffering function is arranged in the pipe between the needle valve and the pressure gauge. According to the fuel gas pressure regulating box, the pressure ga