The present invention relates to an air compression teeth washing device. The teeth washing device includes a driving unit, a connecting pipe and a water spraying unit. The driving unit includes a shell and an air compression motor. The air compression motor is disposed inside the shell. The connecting pipe is communicated to the air compression motor of the driving unit. The water spraying unit is communicated to the connecting pipe. The water spraying unit includes a transportation cover, a container can, a flow guiding element and a suction pipe. The transportation cover is a hollow tube and communicated with the connecting pipe. The container can is disposed at the bottom of the transportation cover. The interior of the container can is communicated with a conduction chamber of the transportation cover. The flow guiding element is disposed in the transportation cover. The suction pipe is sleeved on the flow guiding element and disposed inside the transportation cover and the container can. Accordingly, the water in the container can is vibrated for cleanly cleaning the patients teeth.本發明為一種空壓式洗牙器,其包括一驅動單元、一接通管以及一噴水單元,該驅動單元包括一外殼以及一氣壓式馬達,該氣壓式馬達設置於該外殼的內部,該接通管與該驅動單元的氣壓式馬達相連接,該噴水單元與該接通管相接通,該噴水單元包括一輸送蓋、一容置罐、一導流件以及一吸管,該輸送蓋為一中空管體且與該接通管相接通,該容置罐結合該輸送蓋的底部,該容置罐內部與該輸送蓋的導通室相連通,該導流件卡設於該輸送蓋內,該吸管套設於該導流件且設置於該輸送蓋及該容置罐內部;藉此,該容置罐內的水能夠經震盪而清潔地清洗使用者的牙齒。10‧‧‧驅動單元11‧‧‧外殼111‧‧‧第一殼體112‧‧‧第二殼體113‧‧‧通氣接頭114‧‧‧吸盤12‧‧‧氣壓式馬達20‧‧‧接通管21‧‧‧進氣端22‧‧‧出氣端30‧‧‧噴水單元31‧‧‧輸送蓋315‧‧‧噴射孔32‧‧‧容置罐
