NOVELTY - System comprises: waste gathering platform; pack cutting machine; magnetic selection device; manual sorting conveyor; dual-vibration sorting screen; air admission tower; grinding device for grinding the material flow; blending device for blending the grounded material; pellet making machine for molding the blended material; annealing tower; grinding device for grinding humus; blending device for blending organic humus; and pellet making machine for molding the artificial biological humus.    USE - The system is useful for manufacturing solid fuel pellets from urban wastes (claimed).    DETAILED DESCRIPTION - System comprises: a waste gathering platform; a pack cutting machine for cutting and packing wastes; a magnetic selection device for separating iron from wastes; a manual sorting conveyor for removing large wastes; a dual-vibration sorting screen for dividing wastes into three material flows comprising (a) material flow on the screen, i.e. a material flow of large size having thin-film plastics, papers, packages, big leaves and big solid things e.g. fruit seeds, tubers and fibers that does not pass through the upper screen, (b) material flow in the middle of the screen, i.e. a material flow of medium size having small organic wastes and solid things that pass through the upper screen but not through the lower screen and (c) material flow below the screen, i.e. a material flow of small size having soil, sand, gravels, bricks, crushed stones and cinder that passes through both screens; an air admission tower for removing thin nylons from the material flows on the screen; a grinding device for grinding the material flow below the screen, preferably large wastes; a blending device for blending grounded material flow with additives; a pellet making machine for molding the blended material flow into industrial solid fuel pellets; an annealing tower for decomposing the material flow in the middle of the screen to obtain organic humus; a grinding device for grinding the organic humus; a blending device for blending the grounded organic humus with additives to obtain artificial biological humus; and a pellet making machine for molding the biological humus into domestic solid fuel pellets. The waste gathering platform has drainage openings and channels and a chamber for discharging hot air to dry and reduce the dampness of the wastes, where the air admission tower includes: a body for receiving wastes and thin-film plastics fed from the top, which is 3-4 times higher than the bottom diameter/diagonal and has a lateral gate spaced 2/3 of the tower body length and communicated with the side chamber, which is provided with a rotary screen cage having many suction funnels arranged close to the screen for receiving thin-film plastics; and a two-wall annealing tower including outer wall functioning as protective housing, perforated inner wall which wraps around the tower as large basket, aeration pipe with many cross holes for aerating the annealed bulk placed inside the annealing tower and opened bottom provided with rake shaft, where a gap is formed between outer and inner wall for air convection and conservation of the temperature of the annealed bulk when ambient temperature is low.