NOVELTY - System of household rubbish with high calorific value component comprises transmission belt in turn connected with a material outlet, a rolling sieve, a roller, a fan, a crusher, a wind power conveyer, a material conveying and mixing device, a particle molding machine, a dust collector and a cooling chamber; where the material inlet, the rolling sieve, the roller and fan are sorting systems; the crusher, the wind power conveyer, the material conveying and mixing device, the particle molding machine, the dust collector, the cooling chamber and the material outlet are break molding systems.    USE - The system is useful for: the city household rubbish e.g. paper, plastic, waste fabric or kitchen waste and also the industrial rubber waste and the waste buttons; preparing rubbish deriving fuel.    ADVANTAGE - The system: utilizes complete set of mechanized production; has high efficiency in sorting fine granularity (8 mm) and separating rubbish with high calorific value; has good grain effect and particle molding effect; can process daily the large amount of rubbish and has a strong adaptability for non- homogeneous rubbish .    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing rubbish deriving fuel by utilizing the system, comprising sorting the raw rubbish manually, placing in a material conveying device by a belt of upper material outlet and is transmitted into a rolling sieve through a conveying belt, sieving the material whose pore diameter is less than that of a sieve mesh, conveying other material through the transmission belt, removing the large stone block and the large block waste material by the roller through gravity sorting, sorting other using material by a fan and other light components to obtain the material with high calorific value, conveying the combustible component through a conveying belt for crushing, where the combustible components with the high calorific value is required by preparing refused-derived fuel obtained by sorting a front end sorting system, transferring the crushed material into a material conveying and mixing device, in which the biomass, waste lime, industrial sludge additive is added, then mixing and conveying the material into a particle molding machine to obtain the refused-derived fuel particle product after the material is extruded by an refused-derived fuel particle molding module and then is conveyed to a cooling chamber through wind power, storing the cooled refused-derived fuel particles by a material outlet, simultaneously, providing the integral refused-derived fuel particle pressing and molding part with dust collector for removing the dust.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic representation of system of household rubbish.