Efficient and environment-friendly automobile muffler

The invention discloses an efficient and environment-friendly automobile muffler. The efficient and environment-friendly automobile muffler comprises a shell. A sound absorbing layer is arranged in the shell. A water filtering layer is arranged at one end in the shell. One end of the water filtering layer is fixedly connected with an air inflow pipe. The air inflow pipe penetrates through the shell and stretches to the left side face of the shell. One end of the air inflow pipe is connected with one end of the water filtering layer. The other end of the water filtering layer is fixedly connected with one end of an activated carbon layer. The other end of the activated carbon layer is connected with one end of a diversion pipe and one end of a muffling plate. The other end of the diversion pipe is closed. A gap is reserved between the diversion pipe and the muffling plate. The other end of the muffling plate is fixedly connected with one end of a metal net layer. The other end of the metal net layer is fixedly connected with one end of a muffling cotton layer. The other end of the muffling cotton layer is fixedly connected with an exhaust pipe. The efficient and environment-friendly automobile muffler is simple in structure, convenient to use, efficient and suitable for being widely popularized, energy is saved, and environmental protection is facilitated.