Jet flow array type oxygen increasing device

The utility model discloses a jet flow array type oxygen increasing device which comprises a water pump, a water inlet pipe, an air inlet connecting pipe and a water outlet pipe which are mounted sequentially, wherein the air inlet connecting pipe adopts a multipass pipe; an oxygen increasing structure is mounted in the air inlet connecting pipe and comprises an air blast ring; annular air inlet space which is directly or indirectly communicated with the water outlet pipe is formed between the outer wall of the air blast ring and the inner wall of the air inlet connecting pipe; and a plurality of array through-holes are formed in the inner wall of one end, close to the water outlet pipe, of the air blast ring, and are uniformly distributed along the inner wall circumference of the air blast ring. The array through-holes are formed in the air blast ring, then after water flow passes the air blast ring, a round water column is cut into gear-shaped water columns by the array through-holes, array type vacuum negative-pressure areas are formed between cogs of the gear-shaped water columns, so that a great amount of air bubbles are formed through absorption of a great amount of air by the air inlet connecting pipe, an oxygen increasing effect is achieved, characteristics of energy conservation, environmental protection and portability are achieved, and the oxygen increasing effect is better when the oxygen increasing device is in an application state of the large water flow.