1. The air filter and the cyclone dust collector are designed together, and a large-scale magazine-type filter is built in, which can effectively capture dust.

2. The machine is equipped with a high-pressure air source pressure accumulator. After the accumulative feeding times are reached, the filter is automatically reversely purged with high-pressure air to remove the dust attached to the filter.

3. The upper end of the machine is equipped with a breaking valve, and the lower end is equipped with a check valve, which can remove the mobile dust collecting bucket to clean the dust without stopping the machine.