The present invention Multi-Helix pin Iwo electric dust collecting apparatus including a honeycomb the dust collecting unit with a homogenizer is dust collecting a conventional rotary relates to an electric dust collecting device having to be particularly conventional rotating projection plate ionizer on the electric dust collecting device consisting of a large number of home jingwan turning plate Iwo one electric dust collector with Niger exert a considerable collection efficiency sokeseoneun unique sokeseoneun low dielectric invention a relatively dust-collecting efficiency degradation problems are there both days in the longitudinal direction with a relatively long metal plate than the house jingwan a plurality of primary projections formation, and technically it characterized in that it includes forming a plurality of secondary projections, and both ends formed in the connection portion and addressed through a multi-Helix pin ionizer to twist structure to provide a centrifugal force to the absorption target both sides, this invention through the technical features and effects to exert a collection efficiency similar even own genus as well as a low dielectric, changes in collection efficiency even where the effect of the flow velocity faster in such places, as well as the flow rate is slow or severe changes in flow rate regular and effective that by demonstrating the collection efficiency could relatively converting gas with high efficiency, buildings, plants, subway stations, an electric dust collector required under the flow rate during the construction of facilities for air purification in a number etc. tunnel without not necessary to provide an effect to reduce costs for building air cleaning plants, and there is the energy savings that can further reduce the energy consumed to drive the air cleaning plants.