The invention relates to a
noise-reducing
tail gas filter. The
noise-reducing
tail gas filter comprises a filter box (1), a
fire extinguisher (7) and a silencer (8). A filter screen (2) and a
ceramic honeycomb carrier (3) are arranged in the filter box (1), a silencing tube (9) is arranged in the filter box (1), and a
branch tube (10) with holes on the wall is arranged on the silencing tube (9). According to the
noise-reducing
tail gas filter provided by the invention, firstly, under the action of the silencer and the
fire extinguisher, noise is reduced and the fire is extinguished; then acidic components in the tail gas are eliminated by means of
sodium carbonate water mist; and finally, under two-stage
filtration of the filter screen and the
ceramic honeycomb carrier, tail gas, the main components of which are CO, HC and
NOx, is reacted to form CO2, H2O, N2 and O2, and meanwhile, micropores in the isolating walls can effectively filter
black smoke particles which can be combusted under the action of a catalyst
coating, so that the tail gas purifying effect is further improved; and meanwhile, the filter is good in silencing effect.