The invention discloses a novel environment-friendly tail gas treatment device which comprises a first gas inlet pipe. One end of the first gas inlet pipe is connected with an electrostatic dust collection device, a hot gas utilization device is arranged above the first gas inlet pipe, and the first gas inlet pipe and the hot gas utilization device are fixedly connected through a heat conduction pipe. The novel environment-friendly tail gas treatment device is simple in structure, convenient to use, economical and practical; the hot gas utilization device is arranged and is used for utilizingheat in tail gas, air in a vehicle can be heated through the heat in the tail gas, atomized water vapor on a vehicle window can be rapidly removed, oil consumption is reduced, funds are saved, and theproblem that when an air conditioner is turned on in winter, oil consumption is prone to being increased is solved; and through the electrostatic dust collection device, particles in the tail gas canbe filtered and removed, the tail gas treatment intensity is increased, and the situation that due to too many particles, the tail gas treatment device is blocked, and consequently the tail gas treatment effect is influenced is avoided.