Abstract: Combining with the spot testing and numerical simulation method andaccording to the actual situation and the measured datas of the excavation roadway in Xuecun mine,the rules of dust distribution and dust diffusion are simulated by the Fluent software of fluid dynamics under the condition of the mural chimney in ventilation and the dust remover are installed or not.The research results show that,installing the dust remover can not only reduce the dust concentration in the roadway but also change the space distribution of the residual dust and improve the environment quality in the working area.

Key words: Excavation roadway, Dust diffusion, Numerical simulation