Oxygenation device for mandarin fish culture

The utility model discloses an oxygenation device for mandarin fish culture. The oxygenation device comprises a mounting box and a mounting plate, according to the utility model, the exhaust air quantity of the air outlet head can be effectively increased through the honeycomb holes, and the quantity of bubbles can be increased while the state of the bubble quantity is reduced, so that the oxygenyield of mandarin fish is effectively increased; fish food solids are arranged in the air outlet head and can be matched with the wetting effect of a water body, so that the fish food is dispersed andrefined and is fused with the water body to achieve the effect of improving the nutrition and physicochemical property of the water body, and thus more sufficient nutrient substances in the mandarinfish breeding night are effectively ensured; the sliding pressing block can be effectively limited in a sliding mode through the guide rod of the quadrangular prism structure, the sliding pressing block can be effectively limit