Portable road surface cleaning machine

The utility model discloses a portable road surface cleaning machine which comprises a machine frame, a roller set installed at the bottom of the machine frame, a water tank installed in the machine frame, a water pump and a battery assembly which are installed on the machine frame, and a water gun connected with the water outlet end of the water pump. The water inlet end of the water pump is connected with the water outlet of the water tank; the battery assembly comprises an installation shell and a storage battery installed in the installation shell, the position, corresponding to the storage battery, of the rack is concavely arranged downwards to form a sinking part, the first side of the installation shell is hinged to the rack, the installation shell can be annularly arranged outside the sinking part in the rotating process, and the second side and the third side, opposite to each other, of the installation shell extend outwards to form extending edges respectively. The positions, close to the fourth sid