Multi-cavity type automobile exhaust silencer

The utility model provides a multi-cavity type automobile exhaust silencer, and relates to the technical field of automobile exhaust silencing. The multi-cavity type automobile exhaust silencer aims at solving the problems that the size and quality of an existing single silencing cylinder are limited by an automobile body and the effect can not reach the expected target. A gas inlet pipe of the multi-cavity type automobile exhaust silencer penetrates through a front end cover, a front partition plate and a rear partition plate from left to right and is then exposed out of the right side of the rear partition plate by a section. The port of the section, exposed out of the left side of the front end cover, of the gas inlet pipe serves as an exhaust inlet. A middle core pipe is arranged in a circular-pipe-shaped shell, penetrates through the front partition plate and the rear partition plate from left to right, and is then exposed out of the right side of the rear partition plate by a section. The middle core pipe is exposed out of the left side of the front partition plate by a section. An exhaust core pipe penetrates through the rear end cover, the rear partition plate and the front partition plate from right to left and is then exposed out of the left side of the front partition plate by a section. The port of the section, exposed out of the right side of the rear end cover, of the exhaust core pipe serves as an exhaust outlet. The multi-cavity type automobile exhaust silencer is compact in structure, reasonable in design and capable of effectively eliminating the exhaust noise, within the whole rotating speed range, of an engine.