Adjustable decorative keel

The utility model provides an adjustable decorative keel which solves the problem that for installation in different indoor spaces, pipes need to be cut again, and keels or cross beams with customized lengths need to be lengthened and welded. The connecting structure comprises vertical keels and a transverse rod, horizontal plugs are fixedly arranged on the keels and are perpendicular to the keels, the transverse rod is of a hollow tubular structure, the two ends of the transverse rod are matched with the horizontal plugs in an inserted mode respectively, and the length of the transverse rod is smaller than or equal to the distance between every two adjacent keels. The horizontal plug forms a support compensation structure for relative connection of the cross rod and the keel; the keel is of a hollow tubular structure, a base is fixedly arranged on the ground corresponding to the lower portion of the keel, a bottom plug extending in the vertical direction is fixed to the upper surface of the base, the lower e