movably set in the containing space 11 of the base 1 the rotating unit 2 has a motor 21 the motor 21 is connected with a rotor 22 the rotor 22 has a channel 221 on a surface and the channel 221 has a first opening 222 and a second opening 223 separately at two ends of the channel 221 the motor 21 can further connect to the rotating unit 2 from outside of the rotating unit 2 the driving unit 3 is set in the channel 221 of the rotating unit 2 and has a long hole 31 the cover unit 4 is coordinated with a fixing member 41 to be fixed on an end surface of the base for covering the containing space 11 of the base 1 the cover unit 4 has a shaft 42 on an end surface of the cover unit 4 movably penetrating through the long hole 31 of the driving unit 3 and the shaft 42 has a bearing 43 for lubrication as required thus a novel pumping device is obtained please refer to fig4 fig5 and fig6 a to fig6 d which are a view showing a state of use and cross sectional views at a first direction and a second direction showing the state of use as shown in the figures when using the present invention a first pipe 14 and.