We propose the feasibility of realizing loss-proof accelerating beams in a N-type four-level atomic vapor based on the electromagnetically induced transparency (EIT). The generated EIT will overcome the large absorption of the atomic vapor that can produce robust nonparaxial self-accelerating beams. These beams, as eigenmodes of Helmholtz equation in atomic media, accelerate along a circular trajectory with the beam shape preserved. While such beams can not exist beyond the EIT due to the fact that the compensation for absorption demands a large energy transfer from the oscillating tail to main lobe region, which damage the shape of the self-accelerating beam. These results indicate that an atomic vapor open a new window in generation of nonparaxial self-accelerating beams, that, in return, self-accelerating beams may propose new ideas to investigate atomic media and atomic-like ensembles.