Automatic table-top machine (10) for kneading and extruding pasta, comprising a machine body (11), which includes electric gear motor means (12) having an output shaft (12.1) with horizontal axis, transmission means (13) from said output shaft (12.1) to a driven shaft (14) with axis horizontal and parallel to the axis of said output shaft (12.1) and coaxial to a shaft (15) of a kneading reel (15.1), projecting externally to said machine body (11) in a dough forming tank (16), having below and parallel to said shaft (15) of the kneading reel (15.1) an extrusion channel (17), in which there is arranged a worm screw (18) coaxial with respect to said output shaft (12.1), which feeds in the manner of an auger extrusion means (19) for forming pasta, wherein said tank (16) is substantially structured in the manner of a hopper (16.1), having two lateral chute-like walls (16.3), opposite and converging at the bottom into said extrusion channel (17), and two opposite walls, front (16.1) and rear (16.2), substantially v