局(ju)部(bu)通(tong)(tong)風是指掘進工(gong)作面的通(tong)(tong)風。在(zai)開采地(di)下井(jing)巷時，為了供給新鮮空(kong)氣、稀釋并排出掘進工(gong)作面的煙、塵和(he)有(you)害(hai)氣體、創造良(liang)好的作業環境，可采用(yong)總風扭通(tong)(tong)風、擴散通(tong)(tong)風、引射器和(he)局(ju)扇通(tong)(tong)風等局(ju)部(bu)通(tong)(tong)風方(fang)法。
