局(ju)部通(tong)(tong)風是指掘(jue)進工作(zuo)面(mian)的(de)(de)通(tong)(tong)風。在開采(cai)地下井巷時，為了供給新(xin)鮮空氣、稀釋(shi)并排出掘(jue)進工作(zuo)面(mian)的(de)(de)煙、塵和有害氣體、創造良好(hao)的(de)(de)作(zuo)業環(huan)境，可采(cai)用總風扭通(tong)(tong)風、擴散(san)通(tong)(tong)風、引射器和局(ju)扇通(tong)(tong)風等局(ju)部通(tong)(tong)風方法。
