The invention relates to a supporting integrated machine for cleaning a bituminous concrete road sewer. The machine comprises a lifting locking device which has the good cleaning direction performance, equipment locking equipment and lifting adjusting performance. The lower end face of the lifting locking device is provided with an angle conversion device which has the advantage that the cleaning angle is accurate and adjustable, and therefore a bent portion of a pipeline is easy to dredge. The lifting locking device comprises an upper lifting circular truncated cone, the middle of the lower end face of the upper lifting circular truncated cone is provided with a lifting motor through a motor base, an output shaft of the lifting motor is provided with a lifting lead screw through a coupler, the bottom end of the lifting lead screw is installed on a lifting supporting plate through a bearing, and four second positioning shafts are symmetrically welded between the lifting supporting plate and the upper lifting circular truncated cone. According to the supporting integrated machine, a rigid supporting function is achieved in the sewer cleaning process, manual operation is not needed, and a new approach is provided for rigid support during cleaning of the sewer.