The invention provides a hot-melt-type solidification latent heat pump capable of recycling waste heat and belongs to the field of heat pumps. The heat pump comprises a compressor, a condensate water box dry filter, a throttling device, an evaporation water tank, a gas-liquid separator, an evaporation water tank circulating pump, a condensate water box circulating pump, a liquid level meter, a user heat utilization system, a water collector, a dirt separation, a tap water electromagnetic valve, a drainage electromagnetic valve and a controller. Compared with a conventional sewage source heat pump system, the heat pump provided by the invention has the advantages that deep living sewage utilization is realized; through melting and removing ice by virtue of waste heat of living sewage, two alternate freezing and ice melting processes on a heat exchange surface are reduced, the living sewage temperature is reduced, the perennial normal starting and stable operation of a heat pump unit is ensured, furthermore, heat provided by a low-order heat source can meet the consumed heat load demand of a user, the structure is simple, maintenance and overhaul are convenient, and the heat pump can be widely applied to the fields of domestic hot-water supply and heat supply.