A PAINTING DEVICE

The present invention discloses a two-liquid paint coating device which allows high workability despite deformation of a decrepit pipeline and comprises: one or more supporting shafts disposed along an outer edge; cylinders which are installed between the supporting shafts and form an outer frame; axles which are supported by an upper tilting plate connected to the supporting shafts; and wheels which are connected to the front and rear parts of the axles, powered to rotate by a motor which is driven by an external power source while being in contact with an inner diameter of a decrepit pipeline, and impart a forward motion to the device, wherein, at the center of the outer frame formed by the cylinders, installed is a lining unit comprising: a supporting frame which is horizontally stretched; first and second hoses which are supported by the supporting frame and supply a two-liquid paint stored in an external tank; and a spray nozzle which is installed at a front end of the supporting frame and conducts a lining process, wherein the two-liquid paint which is supplied by the first and second hoses is sprayed while being mixed into the decrepit pipeline in which a coating material is removed.