Natural gas pressure-reducing device

The utility model provides a natural gas pressure-reducing device. The natural gas pressure-reducing device comprises a medium-pressure air inflow hooping head, a low-pressure air outflow hooping head, a medium pressure tube cavity, a low pressure tube cavity, a partition plate, a nozzle and a screwed plug, wherein the medium-pressure air inflow hooping head is disposed on one end of the medium pressure tube cavity, the other end of the medium pressure tube cavity, is connected with the low pressure tube cavity through the partition plate, the tail end of the low pressure tube cavity is connected in a sealed manner with the screwed plug, the nozzle is arranged in an axial direction inside the partition plate, a through air hole is arranged in an axial manner in the nozzle, and the low-pressure air outflow hooping head is arranged on a side tube wall of the low pressure tube cavity.