A method based on the superposition of oblique phase in the 3/2 phase distribution is proposed to generate the decelerating Airy beams (DABs) whose main lobes are bent toward side lobes. By adjusting the obliquity factor of the superposition phase, the DABs with different trajectories are obtained. In the circular symmetry case, the circular DABs (CDABs) are generated by the superposition of circular oblique phase. The self-focusing and tight focusing properties of CDABs are invesitigated by numerical simulation. In the self-focusing case, the generated CDABs whose side lobes are surrounded by the main lobes can be used in particle manipulation. In the tight focusing case, the CDABs can produce a spot chain or a light needle which behavior is similar to that of the accelerating Airy beams, but the focus position and distribution can be adjusted by the phase obliquity factor. These results provide a reference on obtaining new Airy beams and expanding their applications.