A dust collector is provided to enhance deintercalation efficiency of dust and to isolate completely fine dust having strong adsorption capability by scratching the dust adhered to a surface of a filter. A dust collector contains a plurality of cylinder filters installed in a wall of a main body(10) in a structure of being rotatable at both ends, a motor and a gear mechanism providing power for rotation of the cylinder filter and a pad(14) arranged along a longitudinal direction of the cylinder filter and scratching out dust through contact of filter surface. The pad is installed in the wall of the main body in a structure of being rotatable at both ends. The pad contains a body portion(16) of a long rod-shape having a groove portion(15) formed in the longitudinal direction and a long strip-shaped pad part(17).
