Auxiliary finishing device for architectural ornament wall surface

The invention relates to the field of wall decoration, in particular to an auxiliary finishing device for an architectural ornament wall surface. The device comprises a smearing roller and further comprises a coating box, a vertical frame and a vertical limiting plate; the smearing roller and the vertical frame are located at the two sides of the limiting plate respectively; a first belt wheel and a second belt wheel located above the first belt wheel are rotationally connected with the vertical frame; a belt is connected between the first belt wheel and the second belt wheel; a transverse telescopic rod is rotationally connected with the end of the belt; a roller frame is vertically and slidably connected with the limiting plate; the smearing roller is rotatably connected with the roller frame; the end, away from the belt, of the telescopic rod is fixedly connected with the roller frame; a plurality of sprayers are mounted on the roller frame; a material pipe is connected between the sprayers and the coating