Soft coal petrography in mine goes upward drilling gas pressure observation system

The utility model discloses a soft coal petrography in mine goes upward drilling gas pressure observation system, receive device, plugging device and survey device including visiting, spy receipts device is visited receipts device afterbody and is connected with plugging device in locating drilling, is equipped with the survey device bottom holing, visit the receipts device and adopt the pipe including preventing collapsing taking out, prevent collapsing taking out and adopt the pipe including being responsible for and preceding spy pipe the person in charge and preceding spy pipe swing joint, plugging device includes shutoff room operation panel, shutoff capsule operation panel and shutoff capsule, the survey device includes the gas manometer, the gas manometer passes through the pipeline and is connected with gas collection analyzer pot, the gas manometer passes through tube coupling to drilling bottom. The soft coal petrography in mine of overcoming that can be better goes upward drilling and easily subsides, and can't be further to the influence of gas parametric measurement, be particularly useful for soft coal petrography and go upward in the drilling survey to the gas parameter.