A combustor nozzle, comprising: a nozzle body that is provided with a fuel flow passage, extends in a rod shape and is disposed along a central axis of the combustor nozzle, wherein fuel can flow along the fuel flow passage toward a leading end of the nozzle body; a cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) disposed on an outer side of an outer circumference of the leading end of the nozzle body with a predetermined clearance thereto so as to form an air flow passage between the nozzle body and the cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) that allows air flowing through the air flow passage to be jetted out toward a front side of the nozzle body; and fuel injection nozzles that are provided in a leading end part of the nozzle body at predetermined intervals in a circumferential direction and extend through the cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) so that fuel can be injected from the fuel flow passage toward the front side through the fuel injection nozzles, wherein the cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) has: an outer circumferential surface cover that has a cylindrical shape and covers an outer circumferential surface of the nozzle body; a leading end surface cover (75b,75c,75d) that has an annular shape and covers a leading end surface of the nozzle body; and inclined flow passages (101;102;103;104;105;106;107;108;109;110;111;113a;113b;114a; 114b;115a;115b;116a;116b;117a;117b;131;132;133;134;135;136; 137;141;142) that extend through the leading end surface cover (75b,75c,75d) so as to jet out in operation a part of the air flowing through the air flow passage, wherein the inclined flow passages (101;102;103;104;105;106;107;108;109;110;111;113a;113b;114a; 114b;115a;115b;116a;116b;117a;117b;131;132;133;134;135;136; 137;141;142) are inclined in a predetermined direction relative to a direction of the central axis of the nozzle body. a nozzle body that is provided with a fuel flow passage, extends in a rod shape and is disposed along a central axis of the combustor nozzle, wherein fuel can flow along the fuel flow passage toward a leading end of the nozzle body; a cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) disposed on an outer side of an outer circumference of the leading end of the nozzle body with a predetermined clearance thereto so as to form an air flow passage between the nozzle body and the cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) that allows air flowing through the air flow passage to be jetted out toward a front side of the nozzle body; and fuel injection nozzles that are provided in a leading end part of the nozzle body at predetermined intervals in a circumferential direction and extend through the cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) so that fuel can be injected from the fuel flow passage toward the front side through the fuel injection nozzles, wherein the cover ring (75;75A;75B;75C;75D;75E;75F;75G;75H) has: an outer circumferential surface cover that has a cylindrical shape and covers an outer circumferential surface of the nozzle body; a leading end surface cover (75b,75c,75d) that has an annular shape and covers a leading end surface of the nozzle body; and inclined flow passages (101;102;103;104;105;106;107;108;109;110;111;113a;113b;114a; 114b;115a;115b;116a;116b;117a;117b;131;132;133;134;135;136; 137;141;142) that extend through the leading end surface cover (75b,75c,75d) so as to jet out in operation a part of the air flowing through the air flow passage, wherein the inclined flow passages (101;102;103;104;105;106;107;108;109;110;111;113a;113b;114a; 114b;115a;115b;116a;116b;117a;117b;131;132;133;134;135;136; 137;141;142) are inclined in a predetermined direction relative to a direction of the central axis of the nozzle body. an outer circumferential surface cover that has a cylindrical shape and covers an outer circumferential surface of the nozzle body; a leading end surface cover (75b,75c,75d) that has an annular shape and covers a leading end surface of the nozzle body; and inclined flow passages (101;102;103;104;105;106;107;108;109;110;111;113a;113b;114a; 114b;115a;115b;116a;116b;117a;117b;131;132;133;134;135;136; 137;141;142) that extend through the leading end surface cover (75b,75c,75d) so as to jet out in operation a part of the air flowing through the air flow passage, wherein the inclined flow passages (101;102;103;104;105;106;107;108;109;110;111;113a;113b;114a; 114b;115a;115b;116a;116b;117a;117b;131;132;133;134;135;136; 137;141;142) are inclined in a predetermined direction relative to a direction of the central axis of the nozzle body.