Pipeline gas cut-off valve convenient to open

The utility model discloses a pipeline gas cut-off valve convenient to open, which relates to the technical field of pipeline gas and comprises a cut-off valve body, connecting pieces are fixedly mounted at two ends of the cut-off valve body, and pipeline bodies are detachably mounted at two ends of the cut-off valve body through the connecting pieces. A fixing piece is fixedly installed at the bottom end of one side of the connecting piece, pipeline bodies needing to be connected are installed on one side of the connecting piece through the installing piece, the two positioning clamping sleeves are rotated, the positioning strips installed in the positioning clamping sleeves are clamped in the positioning grooves of the installing piece, and the pipeline bodies are limited and fixed. The stop valve body and the pipeline body do not need to be spliced and installed through a flange, the stop valve body is convenient to disassemble, assemble and replace, and the problems that an existing stop valve is tedious