Suction type rocket combination circulation engine

The invention relates to a suction type rocket combined cycle engine which belongs to the technical field of combined engines applied to aircrafts and astronautic carriers. The invention includes a turbine engine, a rocket engine and a ramjet engine; the hollow shaft design is adopted for the turbine engine; a rotating ramjet compressed rotor based on the laser compression technology is used to replace the current compressor as a compression component; the rocket engine is laid in a cone in the turbine engine, which consists of an intake cone, a hollow shaft and a tail spray pipe; when the turbine engine works, the closed rocket engine can adjust the tail spray pipe to be the cone of the turbine engine; the turbine and the ramjet engines are integrated with the aircraft body; the front aircraft body pre-compresses the air flow into the turbine or ramjet engines. The invention has the advantages of reusability, compacted structure and light weight, as well as integration of advantages of single rocket engines and ramjet engines and solving the deficiencies of the single rocket and ramjet engines.