A foam material generator has a housing; transmission device on the housing; housing cavity within the housing; pressurizing stirring foaming wheel within the cavity; transmission device transmission shaft connected to the wheel; pressurizing stirrers on the wheel; pressurizing stirrer airflow-facing surface forms an inclined angle with a cross sectional surface in a wheel rotational axis direction; housing cavity inlet is on a cavity end, and a housing cavity outlet is on another end; encircling abrasive disc is on a cavity inner wall adjacent to the outlet; encircling abrasive disc inlet is at a encircling disc middle portion; vortex current abrasive foaming disc is on a wheel end adjacent to the encircling disc; vortex current abrasive foaming disc surface conforms to be in close proximity with an encircling disc surface; and vortex current abrasive foaming cavity is between the surfaces of the vortex current abrasive foam disc and encircling disc.