The utility model belongs to the technical field of prevention waterlogging instrument technique and specifically relates to a special prevention waterlogging instrument is planted to tobacco, comprises a basin body, the basin body coaxial placing chamber that is provided with in bottom, through the circular baffle of pivot fixedly connected with in the placing chamber, circular baffle plate edgepasses through slider and placing chamber inner wall sliding connection, the placing chamber inner wall corresponds the position fixedly connected with the annular clamped of department piece, one side that the the annular clamped piece is close the slider is equipped with the spout, the circular baffle one side fixedly connected with of edge connecting rod, be equipped with the opening on the placing chamber lateral wall, the connecting rod other end runs through the opening and extends to the external portion of basin, the equidistance is equipped with a plurality of third through -holes onthe external wall of basin, the internal bottom of basin is equipped with a plurality of first through -holes along the axial equidistance, the corresponding position department in bottom is equippedwith a plurality of first through -holes in the placing chamber, circular baffle is equipped with a plurality of second through -holes along the axial equidistance. The utility model discloses the rotation of circular baffle in placing chamber and the setting of third through -hole that set up can realize the emission of the internal ponding of basin and store up.