Novel underground drainage box culvert construction joint anti-seepage device

The invention relates to the field of building construction, and discloses a novel underground drainage box culvert construction joint anti-seepage device which comprises a device shell, a stirring cavity is formed in the device shell, a motor cavity facing the street is fixed to the upper surface of the device shell, and a double-shaft motor is arranged in the motor cavity; a motor cavity is formed in the stirring cavity, a rotating groove is formed in the motor cavity, a rotating rod is fixedly connected to the bottom end of the output end of the double-shaft motor, a rotating groove is fixedly formed in the outer side wall of the rotating rod, and the bottom end of the rotating rod penetrates through the stirring cavity and is symmetrically and fixedly connected with extrusion stirring rods; the right side of the device shell is fixedly connected with a cleaning mechanism; when an extrusion stirring rod is driven to rotate, an arranged extrusion plate can be extruded, an arranged extrusion block can slide