Biochar composting device and method and organic compound fertilizer

The invention discloses a charcoal composting device and method and an organic compound fertilizer, and relates to the technical field of composting devices.The charcoal composting device comprises a rotary charcoal burning furnace, a constant-temperature composting barrel, a dry-wet separator and a fan-shaped roller type granulator; the rotary charking furnace comprises a furnace body, a first rotary stirring blade and a first heating resistance wire, the furnace body is provided with a feeding bin and a discharging port, the condenser is used for condensing flue gas in the furnace body, and the pyroligneous liquor storage cavity is communicated with the constant-temperature composting barrel through a liquid conveying pipe; the constant-temperature composting cylinder comprises a cylinder body, a second rotary stirring blade, a second heating resistance wire and an aeration device, the upper end of the cylinder body is provided with a dry-wet separated manure-carbon nitrogen regulator inlet, and the lower e