The invention discloses a dust remover and dust removal welding machine equipment, and relates to the technical field of welding equipment, the dust remover comprises a dust removal box body, a dust collection barrel, an annular cover, a filter cartridge and a fan, the filter cartridge and the fan are both installed in the dust removal box body, a dust inlet is formed in the side wall of the dust removal box body, an air inlet of the fan is communicated with the interior of the filter cartridge, and an air outlet of the fan is communicated with the outside; the annular cover is arranged on the periphery of the filter cartridge in a sleeving mode, an annular gap is formed between the inner wall of the annular cover and the outer wall of the filter cartridge, the dust inlet can communicate with the annular gap and the outside, the upper end of the annular gap is blocked, the lower end of the annular gap communicates with the dust collection barrel, and the dust inlet is used for guiding air containing smoke dust into the annular gap. When the fan performs exhausting, air containing smoke dust can be filtered through the side wall of the filter cartridge, the smoke dust enters the dust collection barrel, and the filtered air enters the filter cartridge and is discharged to the outside through the fan. According to the dust remover and the dust removal welding machine equipment, dust removal and welding are integrated, and the cost is reduced.