Silencer

The utility model discloses a silencer relates to exhaust after-treatment equipment technical field, including silencing body, air guide part and at least one buffer device, silencing body has the inner cavity, the inner cavity is used for holding silencing liquid, silencing body one end far away from silencing liquid is equipped with with the first exhaust port that is communicated with the inner cavity; the air guide component is provided with an air inlet and at least one second exhaust port, the air guide component is connected with the silencing body, each second exhaust port is communicated with the buffer cavity of one buffer device, all the second exhaust ports are immersed in the silencing liquid, and airflow can enter the air guide component from the air inlet of the air guide component and is exhausted from the second exhaust ports; all the buffer devices are arranged in the inner cavity of the silencing body, each buffer device is provided with a plurality of silencing holes, and airflow exhausted