The dust cyclone catcher and dual cylinder is equipped with structure, high-pressure electrostatic field. The top side in a whirlwind cylinder of gas and dust, and the top one insulator imports. The top side a whirlwind cylinder, the clean air export has three insulator, top by negative pressure operation without pollution of gas chamber insulators, since the dust in the cylinder with anticorrosion coating areas, external electric is magnetic seven corrosion. The top and two dust in dust vibration device. In order to facilitate the dedusting, winds down outside the whirlwind cylinder is a conical body, there is a reflection, tapered body is used for installation and maintenance