Road separation anti-collision guardrail capable of being quickly disassembled and assembled

The utility model discloses a road separation anti-collision guardrail capable of being quickly disassembled and assembled. The road separation anti-collision guardrail comprises a movable part and a fixed part, the fixed part comprises a fixed sleeve which is fixedly arranged in a ground guardrail base; the movable part comprises a movable sleeve, a first bolt hole is formed in the upper section of the movable sleeve, a second bolt hole is formed in the middle section of the movable sleeve, and the movable sleeve is connected with the fixed sleeve through a core column in series; the core column is arranged in the movable sleeve when being lifted by the lifting rod, and at least part of the core column is arranged in the fixed sleeve when falling down; a core column bolt hole is formed in the upper section of the core column; after the core column is lifted up and placed in the movable sleeve, the core column plug pin hole corresponds to the first plug pin hole and is fixed through the plug pin; after the co