The utility model discloses a post-
processing catalytic heater, the post-
processing catalytic heater comprises a shell, a heating
assembly and a
binding post, the shell is provided with an accommodating cavity, the heating
assembly is accommodated in the accommodating cavity, the side wall of the shell is provided with a mounting hole, and the mounting hole is communicated with the accommodating cavity; the heating
assembly comprises at least one heating belt, the heating belt comprises a plurality of large-wave heating strips and small-wave heating strips which are sequentially arranged in parallel in a staggered mode, and the large-wave heating strips and the small-wave heating strips are staggered to form a plurality of
honeycomb type small holes; the
binding post is fixedly connected with the heating belt, one end of the
binding post penetrates through the installation hole and extends out of the shell, the binding post and the shell are arranged in an insulated mode, and a locking structure for fixing the binding post is installed on the binding post. The space is arranged between the heating belt and the inner wall of the shell so that the
air cooling effect of the outer ring can be improved, the heating belt and the binding posts are in conductive connection through the conductive fixing pieces, the local heating problem is avoided, the reliability is guaranteed, and the product durability is improved through rolling forming of the heating strips.