Dust removal automobile muffler with long service life

The utility model discloses a dust removal automobile muffler with a long service life. A rectangular silencing pot unfolding sheet is included, the silencing pot unfolding sheet is provided with a plurality of double-door and window holes, and each double-door and window hole comprises a rectangular sound passing hole formed in the silencing pot unfolding sheet. Each sound passing hole is provided with a cross beam, and the axis of each cross beam coincides with the connecting line of the midpoints of the opposite edges of the corresponding sound passing hole. The two sides of each cross beam are connected with a wing plate A and a wing plate B respectively, each cross beam divides the corresponding sound passing hole into two symmetrical through holes with the same area, an acute angle A is formed between the wing plates A and the silencing pot unfolding sheet, and an acute angle B is formed between the wing plates B and the silencing pot unfolding sheet. The area of each wing plate A is equal to the area of the sound passing hole in the left side of the corresponding cross beam, and the area of each wing plate B is equal to the area of the sound passing hole in the right side of the corresponding cross beam. The dust removal automobile muffler with the long service life has the advantages of being simple in structure and high in anti-noise capacity.