Molten aluminum filtering device for aluminum alloy casting

The utility model belongs to the technical field of aluminum alloy. The invention discloses an aluminum liquid filtering device for aluminum alloy casting. Working table and thread, a high-temperatureheat insulation box is arranged above the workbench. A liquid outlet is formed in the lower portion of the high-temperature heat insulation box. The liquid outlet penetrates through the workbench; the surface of the end, away from the high-temperature heat insulation box, of the liquid outlet is connected with a screwing block in a threaded screwing mode. The molten aluminum filtering device foraluminum alloy casting is provided with a limiting ring, a sliding groove, a handle, a sliding plate and a sliding block; a sliding groove is formed in the sliding block; the sliding groove facilitates sliding of the sliding plate; when a user takes clean molten aluminum, the operation is simple; the sliding plate is pulled out only through the handle, then the clean molten aluminum tank is takenout of the limiting ring, t