The invention relates to a device for distributing plant products for a farm building, in particular for a poultry farm building, comprising: - a tank (10) of plant products provided with a loading opening； - transfer means (100) of said plant products stored in said tank (10) making it possible to move said plant products in a direction (F) in advance from transfer means (100) to a distribution unit (1)； said distribution unit (1) being at least partially delimited by a casing (12) containing: - loading means (122) of said plant products arriving from said transfer means (100)； - a rotary lock member (13) disposed at the outlet of said loading means (100), so as to recover said plant products arriving from said loading means (122), said lock member (13) comprising a protective case (133) provided with a first opening (131) and a second opening (132) forming an air passage passing through said sluice member (13), for the passage of an air flow, so as to expel said plant products arriving in said lock member (13) through said second opening (132), said first opening (131) being connected to means for producing compressed air and said second opening (132) being connected to means ejection (14) of said plant products. L'invention concerne un dispositif de distribution de produits végétaux pour bâtiment d'élevage, notamment pour bâtiment d'élevage avicole, comprenant : - un réservoir (10) de produits végétaux muni d'une ouverture de chargement； - des moyens de transfert (100) desdits produits végétaux stockés dans ledit réservoir (10) permettant de déplacer lesdits produits végétaux selon une direction (F) d'avance des moyens de transfert (100) vers une unité de distribution (1) ； ladite unité de distribution (1) étant au moins partiellement délimitée par un carter (12) renfermant : - des moyens de chargement (122) desdits produits végétaux arrivant desdits moyens de transfert (100) ； - un organe d'écluse (13) rotatif disposé en sortie desd
