The present invention relates to a blowing-suction device that operably works in a blowing mode or a suction mode. The blowing-suction device includes: a housing, having a first opening connected to the outside； an air tube, connected to the housing； an air flow generation apparatus that operably generates an air flow, where when the blowing-suction device is in the blowing mode, the air flow is blown out from the air tube, or when the blowing-suction device is in the suction mode, the air flow is sucked from the air tube； and a collection apparatus, configured to collect an object sucked by the blowing-suction device in the suction mode, where the collection apparatus is connected to the first opening both in the blowing mode and in the suction mode, and the collection apparatus further includes an air admission portion, and in the blowing mode, the air admission portion is open； or in the suction mode, the air admission portion is closed.
