Novel bridge penetrating floor connecting structure

The utility model discloses a novel bridge penetrating floor connecting structure which comprises a floor, a bridge sleeve, an embedded bridge and a fireproof steel plate. A bridge casing pipe is integrally arranged on a floor slab, an embedded bridge is arranged in the bridge casing pipe, and the two ends of the embedded bridge protrude out of the two ends of the bridge casing pipe respectively. The bottom end of the bridge sleeve and the outer wall of the pre-embedded bridge are sealed and fixedly connected through a horizontally arranged fireproof steel plate; and a fireproof blocking material and fireproof mud are sequentially arranged in a gap between the bridge sleeve and the pre-buried bridge from bottom to top. The construction method has the advantages that hanging hole plugging is not needed after the bridge is installed, the quality problem caused by different levels of constructors is solved, the root of the bridge is formed at a time during concrete pouring, the construction method is simple, env