Cyclone dust collector

Abstract

Multi-cyclone dust collector including a primary cyclone body and dust collecting box for causing circulation of air and collecting various foreign matters, the primary cyclone body and dust collecting box having a first air inlet for drawing air together with various foreign matters and a first air outlet for discharging air from which the various foreign matters are removed primarily, a secondary cyclone body over the primary cyclone body and dust collecting box for causing circulation of the air to flow in a direction at a right angle to the direction of air flow in the primary cyclone body and dust collecting box, the secondary cyclone body having a second air inlet in communication with the first air outlet for drawing the air from the primary cyclone body and dust collecting box to the secondary cyclone body in a direction tangential to an inside circumference of the secondary cyclone body, and a second air outlet in a center of one side of the second air cyclone body in the vicinity of the first air outlet having an extension piece to inside of the secondary cyclone body in communication with a space where the fan is located, and a second dust collecting box having an opening to the other side of the second air inlet.