The invention discloses a cooling and haze removing street lamp combined with photovoltaic power generation. The cooling and haze removing street lamp comprises a high-pressure spraying system, an air purification treatment device and a circuit control box which are arranged vertically. The high-pressure spraying system is connected with an illumination lamp body and a photovoltaic solar cell panel and further connected with a municipal water supply pipe; the circuit control box is connected with the photovoltaic solar cell panel to form a photovoltaic power generation system; and the circuit control box is further connected with the illumination lamp body, the air purification treatment device and the high-pressure spraying system. According to the cooling and haze removing street lamp, air conditioning equipment is combined with a street lamp so that the illumination function can be achieved and moreover, local adjustment and effective haze removing can be further performed on outdoor air.