Filter holder for espresso coffee machine and machine equipped with such filter

A filter holder for an expresso coffee machine, the filter holder comprising:

• a cup-shaped body having a circular profile, said cup-shaped body having a bottom wall and a lower side, said cup-shaped body adapted to house a filter;
• a discharge nozzle projecting downwardly from a lower side of the bottom wall of said cup-shaped body, said discharge nozzle having a cylindrical shape;
• a pouring device having a cylindrical body, said discharge nozzle being inserted into the cylindrical body, said pouring device having at least one pouring spout;
• and
• a connector connecting said pouring device to said cup-shaped body, said connection having a bayonet between said pouring device and said cup-shaped body, said connector comprising a first connector on said pouring device and a second connector on said cup-shaped body, the first connector having a pair of teeth, the second connector having a pair of coupling seats that respectively couple to the pair of teeth of said first coupler, the pair of coupling seats being on a lower side of the bottom wall of said cup-shaped body in a diametrically opposite position from a position of said discharge nozzle, each of the pair of coupling seats having a curvilinear shape and longitudinal axis along a section of an arc of the circumference concentric with said discharge nozzle, each coupling seat of the pair of coupling seats having an inlet slot, the inlet slot having a keyhole shape that has an eye opening to a slot, the slot having a width less than a width of the eye, the inlet slot being on an annular plate with a central hole, the central hole receiving said discharge nozzle, the annular plate being stopped and fixed by a screw against the lower side of the bottom wall of said cup-shaped body.