An investigation on dusted airflow distribution in gas chamber of multicyclone has been carried out by using the principle that the resistance of dusted airflow in it would keep equilibrium. 通过对多管旋风除尘器内气流阻力平衡分析,探讨多管旋风除尘器中各旋风子单体的气流分配状况,建立了气流分布计算模型,结合算例进行了分析。