The invention provides a gas sample collector.The gas sample collector is characterized by comprising a sleeve and a piston rod matched with the sleeve, a first branch gas pipe is arranged at the front end of the sleeve and communicated with a gas guiding pipe, a rubber head is arranged at the end, far away from the sleeve, of the gas guiding pipe, the gas guiding pipe is communicated with a second branch gas pipe, a burning head is arranged at the end, far away from the gas guiding pipe, of the second branch gas pipe, a first valve is arranged on the first branch gas pipe, and a second valve is arranged on the second branch gas pipe.By site testing, all technical indexes of the gas sample collector conform to design requirements, sampling tests of gas are achieved, using is convenient, and sampling results are accurate.