The invention relates to a street lamp with an adjustable
irradiation range and a self-cleaning function. The street lamp comprises an illuminating lamp body and a lamp column, and further comprises acleaning mechanism and an adjusting mechanism, wherein the cleaning mechanism comprises a lifting
assembly, a stretchable
assembly, a cleaning
assembly and a lifting seat, the cleaning assembly comprises a driving unit, a base frame, a swinging rod and a cleaning
brush, the adjusting mechanism comprises a driving assembly, a driving rod and a base plate, the lifting assembly comprises a second motor, a base, a
winch, a connecting wire, a fixed
pulley and a connecting rod, and the stretchable assembly comprises an air cylinder, a stretchable frame, a supporting rod and a lifting block. According to the street lamp with the adjustable
irradiation range and the self-cleaning function, stains on the illuminating lamp body can be cleared through the cleaning mechanism, so that the influence ofthe stains on the illuminating lamp body is reduced, and the illuminating effect of the street lamp is improved; and moreover, the angle of the illuminating lamp body can be adjusted through the adjusting assembly, so that the
irradiation range of the illuminating lamp body is expanded, and the illuminating effect of the street lamp is further improved.