The utility model discloses an ardealite heaping and storing device. The ardealite heaping and storing device comprises a slurry discharging pool, wherein a slurry discharging pipe which is connected with a reaction system is arranged above the edge of the slurry discharging pool, multiple slurry discharging ports are evenly formed in the slurry discharging pipe, siphons are arranged on the slurry discharging pool, the slurry discharging pool is connected with a multi-stage water catchment open trench located around the slurry discharging pool through the siphons, an overflowing device is arranged on the multi-stage water catchment open trench, and the overflowing device is connected with a settling pond. According to the ardealite heaping and storing device, the sizes of damming ardealite particles are made uniform by the adoption of the multi-point slurry discharging method, wet damming is conducted by using local materials by means of secondary crystallization of ardealite in an acid environment and high gluing property of the ardealite, and the heaping and storing device is low in cost, high in stability and capable of achieving heaping and storing of ardealite on a flat ground; slag and water are separated naturally according to the method that water is discharged through slag through slurry discharging, in this way, the distance between a dam and a dry beach in front of the dam is guaranteed, water enters the multi-stage water catchment open trench through the siphons, water enters the setting pond after staying for a longer time, and thus the cleanness of production water is guaranteed.