In the design of sheet pile wharf, in order to reduce the earth pressure on the sheet pile, we commonly design a row of blind piles at a certain distance behind the sheet pile, including precast concrete pile,steel pipe pile and cast-in-situ pile， among which，the cast-in-situ pile is the most commonly used one. The calculation result proves that the rectangular cross-section is better that the circular one, but the construction of the rectangular cross-sectioned pile commonly uses the conventional equipment, which is characterized by low pore-forming efficiency and is difficult to ensure the construction quality. The air lifted reverse circulation multi-drilling technology and equipment presented in this paper are applied to the construction and have achieved satisfactory effects.