Multi-section waste gas catalytic oxidation device of industrial waste gas treatment equipment

The utility model provides a multi-section waste gas catalytic oxidation device of industrial waste gas treatment equipment, which relates to the technical field of industrial waste gas treatment and comprises a bottom plate, a combustion box is fixedly mounted on the upper surface of the bottom plate, a catalysis box is mounted on the upper surface of the bottom plate, and breather pipes are mounted on the outer surfaces of the combustion box and the catalysis box. The end, away from the combustion box and the catalysis box, of the ventilation pipe communicates with a dust removal box, and an installation pipe is installed on the outer surface of the dust removal box. Through the arrangement of the bottom plate, the combustion box, the catalysis box, the ventilation pipe, the dust removal box, the mounting pipe, the connecting pipe, the sliding block, the sealing sleeve, the insertion block, the fixing shell, the connecting block, the connecting groove and the fixing bolt, the function of assembling the cata