局(ju)部通(tong)(tong)風是指掘(jue)進工(gong)作(zuo)面(mian)的(de)通(tong)(tong)風。在開采(cai)(cai)地(di)下井巷(xiang)時，為了供(gong)給新鮮空氣、稀(xi)釋(shi)并(bing)排(pai)出掘(jue)進工(gong)作(zuo)面(mian)的(de)煙、塵(chen)和(he)有害氣體、創造(zao)良好(hao)的(de)作(zuo)業環境，可采(cai)(cai)用(yong)總風扭通(tong)(tong)風、擴散(san)通(tong)(tong)風、引射器(qi)和(he)局(ju)扇(shan)通(tong)(tong)風等局(ju)部通(tong)(tong)風方(fang)法。
