Dust collecting device

A dust collecting device, comprising:

• at least one particle separation component having a main body, one side of the main body of the at least one particle separation component extending outward to form a first gas input portion, one end of the main body of the at least one particle separation component extending outward to form a first gas output portion, another end of the main body of the at least one particle separation component extending outward to form a foreign matter outlet portion, the first gas output portion being connected to a first external device, and the first gas input portion, the first gas output portion and the foreign matter outlet portion communicating with each other;
• at least one airflow output component having a main body, one side of the main body of the at least one airflow output component extending outward to form an airflow inlet portion, one end of the main body of the at least one airflow output component extending outward to form a second gas output portion, another end of the main body of the at least one airflow output component extending outward to form a second gas input portion, the airflow inlet portion being connected to an external gas source device, the second gas output portion being connected to the first gas input portion, the second gas input portion being connected to a second external device, and the airflow inlet portion, the second gas output portion and the second gas input portion communicating with each other;
• and
• at least one particle collection component being connected to the foreign matter outlet portion.