Isopropyl amine crude product purifying device

The utility model discloses an isopropyl amine crude product purifying device, comprising an isopropyl amine separation tower and a dehydration tower; the isopropyl amine separation tower is connected with a material inlet; the purifying device also comprises an isopropylamine tower and a diisopropylamine tower; each tower is a rectifying tower; the top of the tower is provided with a condenser; the bottom of the tower is provided with a reboiler; the isopropyl amine separation tower bottom liquid outlet is connected to the upper part of the dehydration tower through a pipeline; the isopropyl amine separation tower top gas outlet is connected to the upper part of the isopropylamine tower through a pipeline; the lower part of the dehydration tower is connected to the upper part of the diisopropylamine tower; the isopropylamine tower bottom is a purified isopropylamine product outlet; and the diisopropylamine tower top is a purified diisopropylamine product outlet. The device adopts four-tower design, performs