Gas recovery well doser

The utility model provides a gas recovery well doser, this gas recovery well doser include blow -down pipe, connector, lower pencil that top -down connected gradually. The unloading gate is connectedthrough the nipple joint in the connector upper end, and the blow -down pipe is connected to unloading gate upper end. The connector lower extreme passes through pencil under the threaded connection.The utility model discloses can be fast convenient absorbed foaming agent, the foaming agent drops into the in -process, can not paste on the well head inner wall or kept off on the inside boss of well head, or the card reduces the well head and pollutes in the well head, eliminates the potential safety hazard of necessarily being under construction, reduces workman's intensity of labour, improvesrate when opening the well. 本实用新型提供种采气井加药器，该采气井加药器包括自上而下依次连接的放空管、连接头、下药管。所述连接头上端通过短节连接放空闸门，放空闸门上端连接放空管。所述连接头下端通过丝扣连接下药管。本实用新型能够快速方便的投入起泡剂，起泡剂在投入过程中，不会粘贴在井口内壁上或被挡在井口内部的凸台上，或卡在井口中，减少井口污染，消除定施工安全隐患，降低工人的劳动强度，提高开井时率。