The present invention relates to a movable paint dust collecting device for ship painting for collecting and preventing scattering by collecting paint dust inevitably generated during the painting work of a ship, and to a movable paint dust collecting device for filtration treatment, and a moving wheel is mounted on the lower part of the base frame to move. A balance unit provided to enable; A lift link unit provided to be folded in a vertical direction by connecting and linking in an X (X) shape on an upper surface of the cart unit; An elevation adjustment cylinder connected to drive the elevation of the lift link unit side; A painting worktable installed on the upper surface of the lift link part and provided with a controller on the handrail and the handrail; A driving unit connected to the bogie unit and having a steering wheel for steering operation and a braking brake for braking when the bogie unit is moved to the moving wheel side; A dust inlet installed on the upper surface of the painting workbench and provided to suck paint dust generated during painting work of the ship; A dust suction duct connected to the dust suction port to form a discharge path for discharging the filtered air from which the paint dust has been removed together with the suction path of the paint dust; A dust suction fan disposed on the dust suction duct to generate a suction force for suctioning paint dust generated during painting work of the ship; A filtering unit disposed on the dust suction duct, provided to be replaceable, and absorbing and removing paint dust which is sucked into the dust suction duct through the dust suction port; It characterized in that it comprises a; disposed on the dust intake duct, provided to be replaceable, and for deodorizing the odor from the filtered air passing through the filtering unit to discharge clean air to the outside. According to the present invention, since paint dust is sucked and collected and processed when painting a ship outdoors, n