The　Shuiyindong　gold　mine　in　Guizhou　is　used　as　a　case　study　in　this　paper　to　study　patterns　of　dust　pollution　occurring　with　traditional　electric-rake　operation.　In　particular,　the　study　uses　the　northern　quarry　of　the　twenty-third　line　in　the　first　middle　section　of　the　second　mining　area　and　establishes　a　three-dimensional　simulation　model　of　equal　size.　It　uses　Computational　Fluid　Dynamics　(CFD)　to　simulate　and　analyse　the　airflow　traces　and　distribution　of　dust　concentration　in　the　relevant　roadway　during　each　stage　of　the　electric-rake　operation.　The　simulation　results　show　that　the　airflow　in　the　working　roadway　has　a　spiral　movement　and　produces　reverse　dirty-wind　circulation　towards　the　end.　Dust　flows　out　of　the　working　roadway　from　the　8th　second　of　operation,　and　dust　concentration　reaches　a　peak　in　the　working　roadway　at　the　12th　second　of　operation　at　an　average　dust　concentration　of　37.5　mg/m³.　The　dust　concentration　drops　rapidly　from　the　120th　second　and　reaches　the　maximum　dust　concentration　permitted　for　operation　at　the　180th　second　of　operation.　The　validity　of　the　simulation　is　tested　by　comparing　the　actual　measured　data　at　the　site　with　the　simulation　results.　Finally,　the　simulation　results　are　analysed　using　violent　Python,　and　the　solution　is　used　to　divide　the　roadway　into　areas　according　to　the　human　breathing　range.　The　paper　analyses　the　distribution　of　dust　concentration　at　an　average　human　breathing　height,　providing　an　established　theoretical　basis　for　dust-control　work　in　mines.　©　2023　The　Institution　of　Chemical　Engineers