FIELD: blower manufacture, namely impellers of axial blow blowers. SUBSTANCE: impeller includes boss consisting of central sleeve and of two parallel plates coupled with sleeve. Said plates have protrusions whose number is equal to that of blades. Two inserts are arranged inside each protrusion. Between two inserts duct is formed for placing stem of blade. Inserts have grooves arranged normally relative to plates having respective studs engaging with said grooves. Symmetry axis of each protrusion is shifted in parallel relative to corresponding diametrical axis of sleeve. EFFECT: redistribution of centrifugal load from blades to boss, possibility of desired change of attack angle of blades. 4 cl, 2 dwg
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