Separable pouring connector of steel mould trolley

The invention relates to the technical field of pouring openings, in particular to a steel mould trolley separable pouring connector which comprises a steel mould trolley body and a pouring opening formed in the surface of the steel mould trolley body in a penetrating mode. The opening and closing assembly comprises a blocking block detachably arranged in the pouring opening, a clamping block arranged on the outer wall of the blocking block, a supporting rod arranged on the outer wall of the blocking block, a first sliding groove formed in the inner wall of the pouring opening and a second sliding groove formed in the inner wall of the pouring opening; the conveying assembly comprises a conveying pipeline arranged on the inner wall of the steel mould trolley, a nozzle arranged in the conveying pipeline, a wedging block arranged at one end of the nozzle and an opening and closing piece arranged in the conveying pipeline; by changing the opening and closing mode of the pouring opening, the pouring opening is au