Street lamp capable of being cleaned

The invention discloses a street lamp capable of being cleaned. The street lamp comprises a street lamp pole and a lamp cover arranged on the street lamp pole. A waste collecting device and a cleaning device are arranged on the street lamp pole. The cleaning device comprises a water tank, a water pump and a spraying nozzle, the water tank is arranged on the side wall of the street lamp pole and provided with a water inlet, the water pump is arranged in the water tank, the spraying nozzle is arranged on the street lamp pole and faces the lamp cover, and the water pump is communicated with the spraying nozzle through a water pipe. The waste collecting device comprises a waste bin, a screen and a waste inlet, a cavity is formed in the street lamp pole, the waste bin is arranged in the cavity, the waste inlet is formed in the outer wall of the street lamp pole and connected with a baffle in a pivoted mode, and the screen is arranged at the bottom of the waste bin. A pipeline used for being connected with a sewer is arranged at the bottom of the street lamp pole. Thus, by arranging the waste collecting device and the cleaning device on the street lamp pole and combining the street lamp, the waste bin and the cleaning spraying nozzle, the occupied area of road facilities is reduced; furthermore, the cleaning spraying nozzle can spray water to the lamp cover for cleaning.