A blowing-suction street cleaner comprises an electric vehicle chassis. A built-in filter is arranged on the electric vehicle chassis, a garbage can of an exhaust fan is assembled on the electric vehicle chassis, a bottom suction dust collection device comprising a flared dust collection nozzle and a fan wheel placed on the periphery of the lower end of the dust collection nozzle is arranged on the lower surface of the electric vehicle chassis, a side suction dust collection device comprising a side suction telescopic pipe and a dust collection elbow is arranged on the right side of the electric vehicle chassis, the dust collection nozzle and the side suction telescopic pipe are communicated with the inside of the garbage can through a reversing tee joint, a bottom suction dust collectiondevice lifting electric push rod and a fan motor are assembled on the bottom suction dust collection device, and the dust collection elbow is provided with a dust collection elbow position adjusting mechanism. All street cleaning operations are finished by airflow, the blowing-suction street cleaner has the advantages of large blowing cover area, strong suction force, high working efficiency, no dust re-entrainment, simple equipment structure, no cleaning wear-out parts and convenience in use and maintenance, and garbage on two sides of a street can be cleaned.