Gas conveying condition monitoring system and method

The invention discloses a gas conveying condition monitoring system. The system comprises a plurality of collecting pipes, wherein the collecting pipes are connected with a gas extraction drill hole, and each collecting pipe is provided with a first flow sensor; a plurality of branch pipes, wherein each branch pipe is connected with the plurality of collecting pipes at the same time, and a second flow sensor is arranged on each branch pipe; a plurality of main pipes, wherein each main pipe is connected with the the plurality of branch pipes at the same time, and a third flow sensor is arranged on each main pipe; a first main pipe, wherein the first main pipe is connected with the plurality of main pipes, and a fourth flow sensor is arranged on the first main pipe; and a second main pipe, wherein the second main pipe is connected with the first main pipe, and a fifth flow sensor is arranged on the second main pipe. According to the invention, all levels of pipelines for gas conveying can be monitored, gas leak