Vertical multi-purpose furnace with controllable atmosphere

The utility model relates to the field of multi-purpose furnaces, in particular to a vertical atmosphere-controllable multi-purpose furnace, which is characterized in that a furnace body is arranged at the top of an atmosphere multi-purpose furnace body, a furnace door is rotatably arranged on the furnace body through an opening and closing mechanism, the furnace body is provided with a special-shaped adjusting column, and the special-shaped adjusting column is in contact with one side, far away from the opening and closing mechanism, of the furnace door; an adjusting cavity is formed in the special-shaped adjusting column, an adjusting plate is inserted into the adjusting cavity, a limiting plate is connected to one side of the adjusting plate, and a plurality of elastic columns are perpendicularly arranged on the limiting plate outwards. The furnace door is opened and closed on the furnace body through the opening and closing mechanism, the limiting plate can be clamped on the outer side of the furnace door