The invention relates to a vertical permanent-
magnet suspension waste-
heat power generator which comprises a power generator outer shell, an expander
volute, a power generator
impeller, a power generator rotating shaft, a
stator system, a rotor
system, an upper bearing part and a lower bearing part, wherein the expander
volute is mounted on the power generator outer shell; the power generator
impeller is connected with a power generator rotating shaft; the power generator rotating shaft is connected with a power generator rotor arranged in the rotor
system, and supported by the upper bearing part and the lower bearing part; the upper bearing part and the lower bearing part are fixed on the power generator outer shell; a power generator
stator arranged in the
stator system is fixed on the power generator outer shell; an air gap is formed between the power generator stator and the power generator rotor; and high-temperature steam of waste-heat resources is absorbed by the expander
volute, the power generator
impeller is pushed to rotate, and then the vertical permanent-
magnet suspension waste-
heat power generator is driven to generate power. The vertical permanent-
magnet suspension waste-
heat power generator provided by the invention is reasonable in design, compact in structure and reliable in running; by utilization of the permanent-magnet suspension bearings which are free from oil
lubrication, little in abrasion, long in life, and capable of running at high rotating speed, the supporting function is achieved; the vertical permanent-magnet suspension waste-heat power generator is cooled by adopting a cooling water injection mode; the waste-heat resources in a factory can be sufficiently utilized; the environmentally-friendly and energy-saving effects are achieved; and the market application prospect is broad.