Front load washing machine, serving as a laundry washer/dryer, of the type comprising a cabinet, said cabinet having standard overall size of normal front load laundry washing machines and containing a washing tub within which there is present, free to rotate through driving means, a laundry holder drum; of the type comprising, combined with the washing system, a heat pump drying system comprising: - At least one rotary compressor, for the compression, with practically constant volume, of a gas which, once compressed, traverses - One heating group comprising a front heating exchanger in which the gas is at contact with the air drawn from the washing tub, transferring the stored heat thereto, and, after lamination, the gas traverses - One condensation group comprising a rear cooling exchanger; - A container for collecting the condensate water; - At least one inspectionable filter integrated in the condensation/heating groups (10, 11) and before said condensation group; - Suctioning and re-introduction channels (14, 15) which connect said groups (10, 11) to the internal of the drum through one or more respective openings or ports (12, 13) obtained in the washing tub respectively for delivery and return; - One or more ventilator means for the circulation of air from within the washing drum to the condensation and heating groups (10, 11) and return; said ventilator means being adapted to establish an air circulation which, from the drum, rises at the rear part, traverses both the rear cooling exchanger and the front heating exchanger, and then re-descend at the front part, where it is re-introduced into the drum, characterized in that: - said condensation and heating groups (10, 11) are centrally arranged at the upper part with respect to the washing tub and connected to said washing tub through a series of channels (14, 15) arranged below at least the relative exchanger (10, 11), - said container comprises a series of grooves which divert the collected water towards at least one discharge point where, due to gravity, the water flows and it is then discharged by a pump of the laundry washing machine; - said two exchangers (10, 11) are arranged in series, so as to establish a linear path for the suctioned air at the rear part from the drum and reintroduced from the front part; - said suctioning and re-introduction channels (14, 15) comprise two suctioning channels, thus joined for passing into the exchangers (10, 11), and thus once again separated in two reintroduction channels; - laterally with respect to said condensation and heating groups (10, 11) are housed upper counterweights, shaped so as to be able to adapt to the arrangement provided for. - At least one rotary compressor, for the compression, with practically constant volume, of a gas which, once compressed, traverses - One heating group comprising a front heating exchanger in which the gas is at contact with the air drawn from the washing tub, transferring the stored heat thereto, and, after lamination, the gas traverses - One condensation group comprising a rear cooling exchanger; - A container for collecting the condensate water; - At least one inspectionable filter integrated in the condensation/heating groups (10, 11) and before said condensation group; - Suctioning and re-introduction channels (14, 15) which connect said groups (10, 11) to the internal of the drum through one or more respective openings or ports (12, 13) obtained in the washing tub respectively for delivery and return; - One or more ventilator means for the circulation of air from within the washing drum to the condensation and heating groups (10, 11) and return; said ventilator means being adapted to establish an air circulation which, from the drum, rises at the rear part, traverses both the rear cooling exchanger and the front heating exchanger, and then re-descend at the front part, where it is re-introduced into the drum, - said condensation and heating groups (10, 11) are centrally arranged at the upper part with respect to the washing tub and connected to said washing tub through a series of channels (14, 15) arranged below at least the relative exchanger (10, 11), - said container comprises a series of grooves which divert the collected water towards at least one discharge point where, due to gravity, the water flows and it is then discharged by a pump of the laundry washing machine; - said two exchangers (10, 11) are arranged in series, so as to establish a linear path for the suctioned air at the rear part from the drum and reintroduced from the front part; - said suctioning and re-introduction channels (14, 15) comprise two suctioning channels, thus joined for passing into the exchangers (10, 11), and thus once again separated in two reintroduction channels; - laterally with respect to said condensation and heating groups (10, 11) are housed upper counterweights, shaped so as to be able to adapt to the arrangement provided for.