Oil and gas field gas sampling device

The utility model discloses an oil-gas field gas sampling device which comprises an oil well, a gas ejector pipe, an opening, a gas connecting pipe, a gas connecting pipe valve, a gas connecting pipeupper cover, a first rubber sealing ring, a bracket, an activated carbon filter screen, a fan, a gas recovery pipe, a gas recovery pipe valve, a guide pipe, a gas storage tank, a gas pressure meter, agas outlet pipe, a gas outlet pipe valve, a second rubber sealing ring and a ring cover. Due to the fact that the direction of the opening formed in the surface of the gas ejector pipe is perpendicular to the direction of the inner wall of the oil well, gas ejected from the opening can effectively accelerate air drying of a cement layer on the inner wall of the oil well when devices inside the oil well are not affected, and the operation period is correspondingly shortened. When the device is used for collecting gas, the atmospheric pressure principle is used for collecting gas samples, a traditional air draft system