Abstract: In order to clarify the influence of the distance of the air pressure cylinder and the ratio of the pumping and air pressure on the cooling of the driving face, a 1∶1 proportional physical model of 7302 track along the tunnel face of Zhaolou Coal Mine was established, and the air duct was compressed using AnsysCFD software. AnsysCFD software was used to numerically simulate the influence of air flow parameters on tunneling working face under the conditions of distance Lf (set as 2.5, 5, 7.5, and 10 m respectively), ventilation rate and pressure rate ratio B(set as 1, 1.5, and 2 respectively) between the air outlet of pressure pipe and the end face of heading face. The results show that when Lf is greater than 5 m, the wind flow in the working area can be maintained above 0.3 m/s. With the increase of Lf, the change of the vortex field near the tunneling head increases. When Lf=5 m and B=1.5, the average temperature of the roadway in the working area is 27 °C, and the long-drainage and short-pressure mixed ventilation system can achieve the best cooling effect. After applying the numerical simulation results to the optimization of the ventilation system of Zhaolou Coal Mine 7302 driving face, the wind speed and wind temperature were measured at the measuring points on multiple cross sections in the face. The average relative error between the measured wind speed and the numerical simulation results was 10.07%. The average relative error between temperature and numerical simulation results is 1.60%, and the numerical simulation results are more accurate.