A sewer cleaning device and/or street cleaning device includes at least one barrel-shaped dirt removal container (1b) for receiving and transporting mineral dirt residues accumulating during sewer and/or street cleaning. A removal device for clearing out the dirt removal container (1b) includes a conveying worm arrangement extending in a longitudinal direction of the dirt removal container (1b) and provided with a rotation driving mechanism, the conveying worm arrangement being received on a swivel frame (6) which is swivel-mounted on an axis extending in the longitudinal direction of the container and swivellable by a swivel drive (7). The conveying worm arrangement is sideways deflectable by the swivel frame relative to a center position associated with the container bottom on both sidesalong the container wall and a fast discharge of the dirt removal container can be achieved.