An air pumping structure is disclosed, which comprises a power assembly, a venturi tube, an air conducting pipe, at least one four-way tube and one tank body. The power assembly includes a power member, a water inlet tube and a water outlet tube, in which the power member is connected to the water inlet tube and the water outlet tube, and ends of the water inlet tube and water outlet tube are extended into water. The venturi tube has a first end, a second end and a connection section, in which the first and second ends are open ends, the first end is connected to the water outlet tube of the power assembly, the second end is internally provided with a spiral section that enables water to spirally flow out from the venturi tube, and a portion located between the first and second ends in the form of a tapered shape is provided with a throat joint having a sectional area than that of the first and second ends and communicating with the connection section. The air conducting pipe is connected to the connection section of the venturi tube. At least a four-way tube, which is in a crosswise shape, has one end connected to the second end of the venturi tube. One end of the next four-way tube is connected to the previous four-way tube, and left and right ends of each four-way tube are connected to tube bodies. The tank body, which is in a tank shape, can be utilized to accommodate water or liquid, and the ends of the water inlet tube and the water outlet tube of the power assembly are extended into the tank body.本發明係關於一種打氣結構,其係包括:一動力組,該動力組係包括:一動力元件、一入水管及一出水管,該動力元件係連設有入水管及出水管,該入水管及出水管之另端係深入水中;一文氏管係設第一端及第二端,該第一端及第二端係均呈有開放狀,該第一端係與動力組之出水管相連接,該第二端內部係設有螺旋部,該螺旋部係可使經由文氏管之水呈螺旋狀流出,該第一端及第二端間係呈漸縮狀而設有一喉管處,該喉管處之截面積係小於第一端及第二端,該文氏管係設有一連接部,該連接部係與喉管處成相通狀;一導氣管係與文氏管之連接部相連接;至少一四通管係呈十字狀,該第一四通管之一端係與第二端相連接,該下一四通管一端係與上一四通管連接,該每一四通管之左、右兩端係與管體相連接;一池體係呈一槽體狀,該池體係可容設水或液體,該入水管及出水管之另端係深入池體中。10‧‧‧動力組11‧‧‧動力元件12‧‧‧入水管13‧‧‧出水管20‧‧‧文氏管30‧‧‧導氣管31‧‧‧濾網40‧‧‧四通管41‧‧‧管體50‧‧‧連接管60‧‧‧池體
