NOVELTY - The dryer (10) has a reactor (20) in which high water content organic waste and municipal refuse are put and a vapor supplier (30) for supplying vapor inside the reactor. A mixer (40) is combined inside the reactor and in which high water content organic waste and municipal refuse are stirred. A sudden pressure reduction valve (50) discharges vapor inside reactor. The pressure reduction valve is connected to one side of the reactor and ejects high pressure within specific range in order to pressurize the atmospheric pressure inside the reactor.    USE - High water content organic waste dryer for use in manufacture of solid fuel.    ADVANTAGE - The need for separate preprocessing is eliminated and the dryer is provided with simple configuration. The drying efficiency of the municipal refuse and organic waste is improved, and the running cost of the organic waste dryer is reduced. The resolving power of steam radical, and the organic compound due to the promotion of the peptone reaction by the iron catalyst reaction and bad smell component are reduced. The solid fuel is manufactured quickly. The fermentation rate and energization efficiency are improved.    DETAILED DESCRIPTION - A solid material trap is installed between a silencer for reducing noise generated in pressure reduction valve, and pressure reduction valve and provides the solid material flowed into the pressure reduction valve into the reactor. A deodorizing device for reducing odor of gas, is connected to the silencer that is consecutively connected to the solid material trap and pressure reduction valve. A blower (90) ejects the air inside the reactor to outside and satisfies the differential pressure condition. INDEPENDENT CLAIMS are included for the following:    (1) a solid fuel manufacturing method involves mixing high water content organic waste and municipal waste that are injected in the reactor in the ratio of 3.5-4:0.5-1. The high temperature vapor is supplied through a vapor supplier and the mixture is hydrolyzed after the pressurization. The mixture is low-molecularized. The 5-10% of moisture content in the reactant that satisfies the differential pressure condition is removed. The moisture content in the reactant is dried. The high water content organic waste is selected from food waste, papers and plastics waste and the municipal refuse is selected from livestock excretions and sewage sludge; and    (2) a pre-treating method for energizing high water content organic waste.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of the high water content organic waste dryer. (Drawing includes non-English language text)    High water content organic waste dryer (10)    Reactor (20)    Vapor supplier (30)    Mixer (40)    Sudden pressure reduction valve (50)    Blower (90)