为改善综掘工作面粉尘污染严重的问题，针对陕西榆林大柳塔煤矿综掘工作面，提出一种安装有分风器的新型分风控尘方法，利用Fluent对使用新型分风控尘方法的粉尘扩散规律进行模拟，分析压风口距工作面不同距离及不同压抽比对粉尘扩散规律变化的影响。结果表明：当压风口距工作面10~20 m时，粉尘积聚、沉降在工作面区域巷道底部，司机处粉尘浓度较低，控尘效果较好；固定压风口距工作面的距离为10 m，压抽比为1.0时，高浓度粉尘积聚在工作面区域，司机处粉尘浓度控制在50 mg/m³以下，控尘效果较好；通过现场实测，粉尘浓度与模拟结果的误差小于15.2%。

In order to improve the problem of serious dust pollution in the fully-mechanized mining face, a new air distribution dust control method with air separator installed was proposed for the fully-mechanized mining face of Daliuta Coal Mine in Yulin, Shaanxi Province. Fluent was used to simulate the dust diffusion rule of the new-type air distribution dust control method, and the influences of different distances between the air pressure outlet and the working face and different pressure-pumping ratios on the change of dust diffusion rule were analyzed. When the air pressure outlet is 10-20 m away from the working face, dust accumulates and settles in the bottom of the roadway in the working face area, and the dust concentration is low at the driver’s side, and the dust control effect is better. When the distance between the air pressure outlet and the working face is 10 m and the pressure-pumping ratio is 1.0, the high concentration of dust accumulates in the working face area, and the dust concentration at the driver is controlled below 50 mg/m³, and the dust control effect is better. Through field measurement, the error between dust concentration and simulation results is less than 15.2%.