Waste wood sleeper pyrolysis apparatus of hybrid heating type

A method of pyrolyzing a waste wood sleeper by using a waste wood sleeper pyrolysis apparatus, the method comprising:

• placing a microwave applicator on an upper portion of a first reactor container among a plurality of reactor containers;
• heating an inside of the first reactor container by using a plate-heater generation unit inside or outside the first reactor container;
• introducing the waste wood sleeper into the first reactor container;
• pyrolyzing the waste wood sleeper by applying power to the microwave applicator;
• moving the microwave applicator to an upper portion of a second reactor container adjacent to the first reactor container;
• and
• reducing a temperature in the first reaction container and recovering a bio-solid fuel generated inside the first reactor container.