A batch-freezer machine (1) for producing ice-cream and similar of the type comprising: an external casing (2) a substantially cylindrical-shaped processing tank (4), extending inside the casing (2) from the front wall (2a) of said casing (2), while remaining coaxial to a substantially horizontal reference axis (A) a front closing hatch (5) structured so to be able to close the opening (4a) of the processing tank (4) in a fluid-tight manner and a rotating mixing member (11) housed in an axially rotatable manner inside the processing tank (4), and structured so as to be able to blend/mix the semi-solid mixture that forms inside the processing tank (4) the mixing member (11) extending coaxial to a second reference axis (L) locally substantially coincident with the reference axis (A) of the processing tank (4), and being provided with a centrifugal impeller (25) which is arranged coaxial to said second reference axis (L) so as to directly face the inner face (5a) of the hatch (5), and structured so as to be able to push/eject the semi-solid mixture located at the center of the opening (4a) of the processing tank (4) towards the internal cylindrical lateral surface (4i) of the processing tank (4), when the mixing member (11) rotates inside the processing tank (4).
